{"product_id":"keystone-kteb-228he-uv-ps-sl-2-lamp-t5-he-ballast-20-pack","title":"Keystone KTEB-228HE-UV-PS-SL 2-Lamp T5 HE Ballast (20 Pack)","description":"\u003ch2 style=\"margin-bottom: 8px;\"\u003eKeystone KTEB-228HE-UV-PS-SL 2-Lamp T5HE Ballast (20 Pack) – F28T5 Program Start\u003c\/h2\u003e\n\u003cp\u003eThe Keystone Technologies KTEB-228HE-UV-PS-SL 20-pack includes high-efficiency 120-277V T5HE electronic ballasts for one or two T5HE lamps (F28T5, F21T5, or F14T5; also 1-lamp F35T5). Program-start operation extends lamp life, and the slim 9.5\" case with leads fits common commercial T5 fixtures. Built for project installs and bulk replacements of Advance, Sylvania, Universal, and Robertson 2-lamp F28T5 program-start ballasts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003e20-pack of 1 or 2 lamp T5HE electronic ballasts\u003c\/li\u003e\n\u003cli\u003eOperates F28T5 \/ F21T5 \/ F14T5 (also 1 × F35T5\/HE)\u003c\/li\u003e\n\u003cli\u003eProgram start for longer lamp life vs instant start\u003c\/li\u003e\n\u003cli\u003eUniversal 120-277V input\u003c\/li\u003e\n\u003cli\u003eHigh power factor and low THD\u003c\/li\u003e\n\u003cli\u003eSlim 9.50\" case with integral leads\u003c\/li\u003e\n\u003cli\u003eSound Rated A with end-of-lamp-life protection\u003c\/li\u003e\n\u003cli\u003e5-year manufacturer warranty from Keystone Technologies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KTEB-228HE-UV-PS-SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Keystone Technologies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLamp Type:\u003c\/strong\u003e T5HE linear (G5 miniature bi-pin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Lamps:\u003c\/strong\u003e 1 or 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Method:\u003c\/strong\u003e Program Start\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLamp Connection:\u003c\/strong\u003e Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 120-277V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBallast Type:\u003c\/strong\u003e Electronic, High Efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Factor:\u003c\/strong\u003e High (≥0.98 typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBallast Factor:\u003c\/strong\u003e 1.00 (2-lamp F28T5\/HE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Watts:\u003c\/strong\u003e 64W (2-lamp F28T5\/HE at 120V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e ≤10%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Rating:\u003c\/strong\u003e A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (each):\u003c\/strong\u003e 9.50\" L × 1.30\" W × 1.00\" H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Centers:\u003c\/strong\u003e 8.96\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin. Start Temperature:\u003c\/strong\u003e 0°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Case Temperature:\u003c\/strong\u003e 158°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL \/ cUL Listed, DOE 2014 Compliant, Class P, Type 1 Outdoor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 5 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/KTEB-228HE-UV-PS-SL_VA4.pdf?v=1787866283\" title=\"Keystone KTEB-228HE-UV-PS-SL specifications sheet\" rel=\"noopener\" target=\"_blank\"\u003eKTEB-228HE-UV-PS-SL spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eCompatible Lamps\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003e1 or 2 × F28T5 \/ F28T5HE (G5)\u003c\/li\u003e\n\u003cli\u003e1 or 2 × F21T5 \/ F21T5HE (G5)\u003c\/li\u003e\n\u003cli\u003e1 or 2 × F14T5 \/ F14T5HE (G5)\u003c\/li\u003e\n\u003cli\u003e1 × F35T5 \/ F35T5HE (G5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eCompatible With \/ Replaces\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003ePhilips Advance ICN-2S28 \/ ICN-2S28-N \/ ICN-2S28-T\u003c\/li\u003e\n\u003cli\u003eOsram Sylvania QTP 2x28T5\/UNV PSN and QS 2x28T5\/UNV PS95-SC\u003c\/li\u003e\n\u003cli\u003eUniversal B228PUNV-C \/ B228PUNV-N\u003c\/li\u003e\n\u003cli\u003eRobertson PSA228T5MV\u003c\/li\u003e\n\u003cli\u003eFulham RHA-UNV-228-LT5\u003c\/li\u003e\n\u003cli\u003eKeystone KTEB-228HE-UV-PS (same family; this SL version is the 9.5\" leaded case)\u003c\/li\u003e\n\u003cli\u003eNot a Type B LED driver – for T5 fluorescent lamps, or Type A T5 LED tubes only if the tube maker lists this ballast\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eCommon Applications\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003eCommercial project installs and bulk ballast replacements\u003c\/li\u003e\n\u003cli\u003eT5 fluorescent fixtures in offices, retail, and classrooms\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency T5 troffers and wraps\u003c\/li\u003e\n\u003cli\u003eReplacement for failed 2-lamp F28T5 program-start ballasts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eWhy Buy from Keystone Technologies?\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003eHigh-efficiency T5HE program-start performance\u003c\/li\u003e\n\u003cli\u003eUniversal 120-277V for commercial fixtures\u003c\/li\u003e\n\u003cli\u003eDirect replacement for major-brand F28T5 ballasts\u003c\/li\u003e\n\u003cli\u003e5-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"margin-bottom: 8px;\"\u003eWhy Buy from LeanLight?\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0;\"\u003e\n\u003cli\u003eFast \u0026amp; free shipping on every order (ships from Georgia)\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 since 2008\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keystone Technologies","offers":[{"title":"Default Title","offer_id":44203710218327,"sku":"KTEB-228HE-UV-PS-SL-20","price":470.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1290\/2817\/files\/Fluorescent-Ballasts-Keystone-Technologies-KTEB-228HE-UV-PS-SL-KTEB-228HE-UV-PS-SL-20-26775713316951.jpg?v=1788620921","url":"https:\/\/leanlight.com\/products\/keystone-kteb-228he-uv-ps-sl-2-lamp-t5-he-ballast-20-pack","provider":"LeanLight","version":"1.0","type":"link"}