{"title":"T5 Ballasts – Electronic T5 \u0026 T5HO Fluorescent Replacement","description":"\u003ch2\u003eFind The Perfect High-efficiency or High-output T5 Ballast\u003c\/h2\u003e\n\u003cp\u003eShop professional \u003cstrong\u003eT5 fluorescent ballasts\u003c\/strong\u003e and \u003cstrong\u003eT5HO ballasts\u003c\/strong\u003e at LeanLight — electronic control gear engineered for T5 and high-output T5HO linear fluorescent lamps. Choose from 1-lamp, 2-lamp, and 4-lamp models with instant start or programmed start technology, available in 120V and universal 120-277V. These reliable Keystone ballasts deliver flicker-free performance, extended lamp life, and energy efficiency for high-bay industrial fixtures, commercial offices, undercabinet lighting, warehouses, and schools. Free shipping on every order plus volume discounts.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose Our T5 Fluorescent Ballasts?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReliable performance – Precise current regulation protects lamps and extends their lifespan\u003c\/li\u003e\n  \u003cli\u003eEnergy-efficient options – Electronic ballasts reduce energy use and operate cooler and quieter\u003c\/li\u003e\n  \u003cli\u003eMultiple start methods – Instant start for long operating cycles and programmed start for maximum lamp life with occupancy sensors\u003c\/li\u003e\n  \u003cli\u003eWide compatibility – Models for standard T5 (F14T5, F21T5, F28T5) and high-output T5HO (F54T5HO) lamps\u003c\/li\u003e\n  \u003cli\u003eUniversal voltage available – Many units accept 120–277V for flexible installation\u003c\/li\u003e\n  \u003cli\u003eEasy replacements – Direct replacements for common OEM ballasts with standard wiring and case sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial high-bay and low-bay T5HO fixtures\u003c\/li\u003e\n  \u003cli\u003eCommercial office and classroom lighting\u003c\/li\u003e\n  \u003cli\u003eUndercabinet and task lighting (smaller T5 lamps)\u003c\/li\u003e\n  \u003cli\u003eWarehouse and retail linear fluorescent systems\u003c\/li\u003e\n  \u003cli\u003eSchools, hospitals, and institutional buildings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Choose the Right T5 Fluorescent Ballast\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLamp Type \u0026amp; Wattage\u003c\/strong\u003e\u003cbr\u003eMatch the ballast to your lamps (example: F14T5, F28T5, or F54T5HO). Check the lamp type and wattage printed on the existing tubes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Lamps\u003c\/strong\u003e\u003cbr\u003eSelect 1-lamp, 2-lamp, or 4-lamp ballasts according to the fixture configuration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStart Method\u003c\/strong\u003e\u003cbr\u003e\n    • Instant Start – Best for lights that stay on for long periods\u003cbr\u003e\n    • Programmed Start – Ideal for frequent on\/off cycles and occupancy sensors (longest lamp life)\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003cbr\u003eChoose 120V for standard residential\/commercial or universal 120–277V for broader compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBallast Factor \u0026amp; Features\u003c\/strong\u003e\u003cbr\u003eHigher ballast factor = more light output. Look for electronic ballasts for quieter, cooler, and more efficient operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eBrands We Carry\u003c\/h3\u003e\n\u003cp\u003eKeystone Technologies — professional-grade T5 and T5HO fluorescent ballasts built for reliable commercial and industrial use.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy from LeanLight?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFast \u0026amp; free shipping on every order (ships from Georgia, 1–5 day delivery in the USA)\u003c\/li\u003e\n  \u003cli\u003eVolume and project discounts available\u003c\/li\u003e\n  \u003cli\u003e30-day satisfaction guarantee with easy returns\u003c\/li\u003e\n  \u003cli\u003eGeorgia-based lighting specialists focused on commercial and industrial solutions since 2008\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does a T5 fluorescent ballast do?\u003c\/strong\u003e\u003cbr\u003e\nA T5 fluorescent ballast provides the high voltage needed to start the lamp and then regulates the current so the lamp operates safely and efficiently without burning out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between T5 and T5HO ballasts?\u003c\/strong\u003e\u003cbr\u003e\nStandard T5 ballasts operate lower-wattage high-efficiency lamps (F14T5, F21T5, F28T5). T5HO ballasts are designed for high-output lamps such as F54T5HO, commonly used in high-bay industrial fixtures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eElectronic vs. magnetic ballasts — which should I choose?\u003c\/strong\u003e\u003cbr\u003e\nElectronic ballasts are quieter, more energy-efficient, run cooler, and produce less flicker. Most new T5 installations use electronic programmed-start ballasts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I know which ballast I need?\u003c\/strong\u003e\u003cbr\u003e\nLook at the existing ballast label or the lamps currently installed. Note the lamp type (T5 or T5HO), number of lamps, wattage, and voltage. You can also search by the old ballast model number for a direct cross-reference.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo these ballasts work with LED tubes?\u003c\/strong\u003e\u003cbr\u003e\nSome Type A (ballast-compatible) LED tubes can operate with existing fluorescent ballasts. For maximum efficiency, many users prefer ballast-bypass (Type B) LED tubes and remove the ballast entirely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo you offer bulk or project pricing?\u003c\/strong\u003e\u003cbr\u003e\nYes. Contact us or create an account for volume discounts on cases and large projects.\u003c\/p\u003e","products":[{"product_id":"keystone-kteb-254ho-uv-ps-sl-2-lamp-t5ho-fluorescent-ballast","title":"Keystone KTEB-254HO-UV-PS-SL 2-Lamp T5HO Fluorescent Ballast - 120\/277V","description":"The Keystone KTEB-254HO-UV-PS-SL is a program start electronic T5HO ballast designed for reliable operation of 1 or 2 T5HO fluorescent lamps (F54T5HO). With 120-277V input voltage, it delivers flexible installation across residential and commercial lighting applications.Built for performance and longevity, this ballast features Class P, Type HL construction with Sound Level A rating for quiet operation. Its Type 1 outdoor rating and FCC Part 18 compliance make it suitable for both indoor and outdoor environments. Steel construction withstands demanding conditions, while UL, RoHS, and DOE certifications ensure safety and efficiency standards compliance.Ideal for retrofit and new installation projects, the KTEB-254HO-UV-PS-SL combines durability with dependable ballast performance. Backed by a 5-year manufacturer warranty, it provides long-term reliability and peace of mind for contractors and facility managers seeking quality T5HO ballast solutions.","brand":"Keystone Technologies","offers":[{"title":"Each","offer_id":42700943097943,"sku":"KTEB-254HO-UV-PS-SL","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Case of 20","offer_id":42700943130711,"sku":"KTEB-254HO-UV-PS-SL-20","price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-254HO-UV-PS-SL-KTEB-254HO-UV-PS-SL-20-26784954384471.jpg?v=1776404765"},{"product_id":"keystone-kteb-454ho-uv-ps-4-lamp-t5ho-fluorescent-ballast","title":"Keystone KTEB-454HO-UV-PS 4-Lamp 54 Watt T5HO Fluorescent Ballast - 120\/277V","description":"\u003cp\u003eThe Keystone KTEB-454HO-UV-PS is a high-performance electronic ballast designed for T5HO fluorescent lighting systems. This 54-watt unit powers up to four F54T5HO lamps with flicker-free operation and instant startup, operating reliably across 120-277V input ranges. Built with Class P construction and Type HL specifications, it delivers whisper-quiet Class A sound performance ideal for offices, retail, and commercial spaces. UL, RoHS, and DOE certified, this ballast combines energy efficiency with dependable durability. The compact design integrates seamlessly into existing fixtures while maintaining consistent light output and reducing maintenance downtime. Choose this ballast for professional-grade fluorescent lighting that meets commercial standards and performs reliably in demanding environments.\u003c\/p\u003e","brand":"Keystone Technologies","offers":[{"title":"Each","offer_id":42700941951063,"sku":"KTEB-454HO-UV-PS","price":44.29,"currency_code":"USD","in_stock":true},{"title":"Case of 10","offer_id":42700941983831,"sku":"KTEB-454HO-UV-PS-10","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-454HO-UV-PS-KTEB-454HO-UV-PS-10-26086825951319.jpg?v=1780032972"},{"product_id":"keystone-kteb-114-1-tp-fc-p-1-or-2-lamp-t5-electronic-ballast-14w-120v","title":"Keystone KTEB-114-1-TP-FC \/P 1 or 2-Lamp T5 Electronic Ballast - 14W, 120V","description":"\u003cp\u003eThe Keystone KTEB-114-1-TP-FC is a 14W, 120V electronic ballast designed for (1) 14W or (2) 8W T5 fluorescent lights. This ballast is designed to ensure reliable performance, while also reducing energy costs up to 30% compared to traditional magnetic ballasts. It is UL listed, thermally protected, and includes a 3 year warranty for added peace of mind.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eLength:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.90 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eWidth:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.91 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eHeight:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.76 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMounting Center-to-Center:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.60 inches\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":40237251788887,"sku":"KTEB-114-1-TP-FC \/P","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-114-1-TP-FC-P-24835270410327.jpg?v=1773084633"},{"product_id":"keystone-kteb-128-1-tp-fc-ph-1-lamp-28-watt-t5-fluorescent-ballast-120v","title":"Keystone KTEB-128-1-TP-FC-PH 1-Lamp 28 Watt T5 Fluorescent Ballast - 120V","description":"\u003cp\u003eKeystone KTEB-128-1-TP-FC-PH Fluorescent Ballast, 1-Lamp, 28W, T5 F28T5, 120V. Use this ballast for (1) F28T5, (1)F21T5, or (2) F14T5 fluorescent lampsKeystone KTEB-128-1-TP-FC-PH Fluorescent Ballast, 1-Lamp, 28W, T5 F28T5, 120V. Use this ballast for (1) F28T5, (1)F21T5, or (2) F14T5 fluorescent lamps. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eLength:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.90 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eWidth:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.91 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eHeight:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.76 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMounting Center-to-Center:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.60 inches\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":40256191594583,"sku":"KTEB-128-1-TP-FC-PH\/D","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-128-1-TP-FC-PH-D-26778285178967.jpg?v=1776318251"},{"product_id":"keystone-1-lamp-8-watt-t5-fluorescent-ballast-kteb-108-1-tp-fc","title":"Keystone KTEB-108-1-TP-FC 1-lamp 8 watt T5 Fluorescent Ballast","description":"\u003cp\u003eExperience superior lighting control with the Keystone KTEB-108-1-TP-FC electronic ballast, a compact powerhouse designed for compact fluorescent applications. This 120-volt ballast delivers precise power management for single 8-watt T5 lamps, featuring rapid-start technology that eliminates warm-up delays and provides instant illumination. The electronic design minimizes flicker and acoustic noise, creating a flicker-free environment ideal for offices, retail spaces, and task lighting. Built with Keystone's reputation for durability and reliability, this ballast maximizes lamp efficiency while reducing overall energy consumption compared to older magnetic models. The F8T5 rapid-start configuration ensures compatibility with standard T5 fixtures, making replacement and upgrades straightforward. Choose this ballast for dependable performance, longer lamp life, and the energy savings your facility deserves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eLength:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.90 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eWidth:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.91 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eHeight:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.76 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMounting Center-to-Center:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 5.60 inches\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":40363096899671,"sku":"KTEB-108-1-TP-FC\/L","price":18.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-108-1-TP-FC-L-24835266248791.jpg?v=1773758122"},{"product_id":"keystone-kteb-208-1-tp-sl-mb-2-lite-f8t5-fluorescent-electronic-ballast","title":"Keystone KTEB-208-1-TP-SL-MB 2-Lamp F8T5 Fluorescent Electronic Ballast","description":"\u003cp\u003eThe Keystone Technologies KTEB-208-1-TP-SL-MB is a professional-grade electronic ballast engineered for reliable undercabinet lighting applications. This 2-lamp F8T5 ballast delivers consistent performance with normal ballast and power factors, operating efficiently at 120V input. Designed for rapid start capability, it powers up quickly when you need it most. Built to withstand demanding environments, this ballast operates reliably from 0°F startup temperatures and maintains safe case temperatures up to 167°F. The A-rated sound performance ensures quiet operation without distracting hum. Advanced features include lamp end-of-life protection that extends fixture lifespan, transient protection meeting ANSI\/IEEE standards, and FCC compliance for electromagnetic compatibility. Running at 20KHz-33KHz frequency, this ballast minimizes flicker for superior visual comfort. Backed by a comprehensive 3-year warranty and quick-ship availability, it's the dependable choice for professional lighting installations\u003c\/p\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":41752429625431,"sku":"KTEB-208-1-TP-SL-MB","price":25.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-208-1-TP-SL-MB-25436690153559.jpg?v=1773254263"},{"product_id":"keystone-kteb-213-1-tp-sl-mb-t5-fluorescent-ballast","title":"Keystone KTEB-213-1-TP-SL-MB 2-Lamp F13T5 120V Fluorescent Ballast","description":"\u003ch2\u003eMaximize Efficiency with the KTEB-213-1-TP-SL-MB Fluorescent Ballast\u003c\/h2\u003e\u003cp\u003eTransform your lighting experience with the \u003cstrong\u003eKTEB-213-1-TP-SL-MB\u003c\/strong\u003e by Keystone Technologies. This innovative 2-lamp F13T5 fluorescent ballast is designed to enhance both commercial and residential spaces, ensuring you have reliable, flicker-free illumination. Whether you're upgrading your office, retail space, or industrial facility, this ballast guarantees a smooth startup and optimal lighting performance, making it an essential choice for any lighting project.\u003c\/p\u003e\u003cp\u003eBy investing in the KTEB-213-1-TP-SL-MB, you not only boost the aesthetics of your environment but also enjoy energy-efficient operation, significantly reducing energy costs. With a compact and robust design, this electronic ballast maintains stability and durability, ensuring longevity and reduced maintenance hassles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 2 T5 fluorescent lamps for flexible applications.\u003c\/li\u003e\n\u003cli\u003eOperates at 120V and 0.43A, optimizing energy consumption.\u003c\/li\u003e\n\u003cli\u003eMeasures only 9.00” L x 1.19” W x 0.95” H, perfect for tight spaces.\u003c\/li\u003e\n\u003cli\u003eEasy retrofit option for existing fixtures, enhancing performance.\u003c\/li\u003e\n\u003cli\u003eDesigned for smooth, flicker-free lighting experience.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDon’t settle for less when it comes to lighting your space. Upgrade to the Keystone KTEB-213-1-TP-SL-MB today, and experience the perfect blend of efficiency, reliability, and performance. Add this to your cart now and illuminate your surroundings with confidence!\u003c\/p\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":41752434835543,"sku":"KTEB-213-1-TP-SL-MB","price":25.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-213-1-TP-SL-MB-25436690415703.jpg?v=1773373546"},{"product_id":"keystone-technologies-kteb-228he-uv-ps-sl-1-or-2-lamp-t5-high-efficiency-ballast","title":"Keystone KTEB-228HE-UV-PS-SL T5 Electronic Fluorescent Ballast, 1 or 2 Lamp, F28T5 F21T5 F14T5, 120-277V, Program Start","description":"\u003ch2\u003eKeystone KTEB-228HE-UV-PS-SL High-Efficiency T5 Ballast\u003c\/h2\u003e\u003cp\u003eTransform your lighting experience with the Keystone KTEB-228HE-UV-PS-SL electronic ballast. Designed for T5 fluorescent lighting systems, this efficient ballast offers seamless operation for one or two lamps, ensuring you enjoy bright, clear illumination wherever it’s installed. Say goodbye to dimly lit spaces and embrace energy-efficient lighting that enhances visibility and productivity.\u003c\/p\u003e\u003cp\u003eThe Keystone ballast adapts effortlessly to various tube types such as F28T5, F21T5, and F14T5, while supporting a wide 120–277V universal voltage range. This flexibility makes it perfect for both new installations and retrofitting existing setups in commercial facilities, retail environments, and residential upgrades.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency operation:\u003c\/strong\u003e Designed for minimal energy consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability guaranteed:\u003c\/strong\u003e Comprehensive 5-year warranty included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced features:\u003c\/strong\u003e Program start ignition and end-of-lamp-life protection ensure reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound rated A:\u003c\/strong\u003e Operates whisper-quiet, creating a comfortable environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold-start rated to 0°F:\u003c\/strong\u003e Perfect for low-temperature settings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith UL listing and FCC Part 18 Class B compliance, the KTEB-228HE-UV-PS-SL ensures safe and efficient operation. Experience peace of mind with a maximum case temperature of 167°F, making it a trustworthy choice for any setting. Don't settle for less when it comes to your lighting solutions. 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