LED Tubes – T5, T8, U-Bend, Selectable & More
Type A, Type B, and A+B for T8, T5, and U-Bend
LED tubes (also called LED linear lamps or LED fluorescent replacements) are direct upgrades for T8, T5, T5HO, and U-bend fluorescent tubes. This collection includes Type A (ballast compatible), Type B (ballast bypass), and Type A+B hybrid lamps in 2 ft and 4 ft lengths, with fixed or selectable color temperature from 3000K to 6500K. Most run on 120–277V, ship in contractor multipacks, and cut energy use 40–60% versus fluorescent. DLC-listed models, free shipping, and volume discounts available.
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Keystone KT-LED15T8-48GC-850-DX2 15W 4ft Type B T8 LED Tubes 5000K (25 Pack)
Keystone KT-LED15T8-48GC-850-DX2 4ft Type B T8 LED Tube – 15W 5000K DX2 (25 Pack) The Keystone Technologies KT-LED15T8-48GC-850-DX2 is a 15W 4ft Ty...
View full detailsSylvania 40971 Type B 4ft T8 LED Tubes 5000K (25 Pack)
Sylvania ECOLED18T8L48FG850TYPEB 4ft Type B T8 LED Tube – 18W 5000K ECO (25 Pack) The Sylvania / LEDVANCE ECOLED18T8L48FG850TYPEB (40971) is an 18W...
View full detailsKeystone KT-LED15T8-48GC-840-D 15W 4ft T8 LED Tube 4000K Direct Drive (2 Pack)
Keystone KT-LED15T8-48GC-840-D 15W Direct Drive T8 LED Tube – Type B Single-Ended Power for Simple Ballast BypassShop the Keystone KT-LED15T8-48GC-...
View full detailsKeystone KT-LED15T8-48GC-840-DX2 15W 4ft Type B T8 LED Tubes 4000K (25 Pack)
Keystone KT-LED15T8-48GC-840-DX2 4ft Type B T8 LED Tube – 15W 4000K DX2 (25 Pack) The Keystone Technologies KT-LED15T8-48GC-840-DX2 is a 15W 4ft Ty...
View full detailsKeystone KT-LED18T8-U6GC-850-D Type B U-Bend LED 5000K
Keystone KT-LED18T8-U6GC-850-D Type B T8 U-Bend LED – 18W 5000K The Keystone Technologies KT-LED18T8-U6GC-850-D is an 18W Type B Direct Drive T8 U-...
View full detailsEuri Lighting ET8-15W50SH Color Select 4ft T8 LED Tubes (20 Pack)
Euri Lighting ET8-15W50SH 4ft Type A+B T8 LED Tube – 15W Color Select (20 Pack) The Euri Lighting ET8-15W50SH is a 15W 4ft hybrid Type A+B T8 LED t...
View full detailsKeystone KT-LED25T5HO-48GC-850-DX2 Type B 4ft T5HO 5000K (25 Pack)
Keystone KT-LED25T5HO-48GC-850-DX2 4ft Type B T5HO LED Tube – 25W 5000K (25 Pack) The Keystone Technologies KT-LED25T5HO-48GC-850-DX2 is a 25W 4ft ...
View full detailsKeystone KT-LED7T8-24G8CSJ-DX2 7W 2ft Color Select T8 LED Tube (25 Pack)
Keystone KT-LED7T8-24G8CSJ-DX2 2ft Type B T8 LED Tube – 7W Color Select DX2 (25 Pack) The Keystone Technologies KT-LED7T8-24G8CSJ-DX2 is a 7W 2ft T...
View full detailsKeystone KT-LED15T8-48GC-850-D/G3 Type B 4ft T8 5000K (25 Pack)
Keystone KT-LED15T8-48GC-850-D/G3 4ft Type B T8 LED Tube – 15W 5000K Single-Ended (25 Pack) The Keystone Technologies KT-LED15T8-48GC-850-D/G3 is a...
View full detailsSylvania 41481 Type A+B 4ft T8 LED Tubes 4100K (25 Pack)
Sylvania LED12T8L48FG841AB 4ft Type A+B T8 LED Tube – 12W 4100K DUALescent (25 Pack) The Sylvania / LEDVANCE LED12T8L48FG841AB (41481) is a 12W 4ft...
View full detailsSylvania 40970 Type B 4ft T8 LED Tubes 4100K (25 Pack)
Sylvania ECOLED18T8L48FG841TYPEB 4ft Type B T8 LED Tube – 18W 4100K ECO (25 Pack) The Sylvania / LEDVANCE ECOLED18T8L48FG841TYPEB (40970) is an 18W...
View full detailsKeystone KT-LED7T8-24GC-840-DX2 2ft T8 LED Tube 4000K (2 Pack)
Keystone KT-LED7T8-24GC-840-DX2 2ft Type B T8 LED Tube – 7W 4000K DX2 (2 Pack) The Keystone Technologies KT-LED7T8-24GC-840-DX2 is a 7W 2ft Type B ...
View full detailsKeystone KT-LED25.5T5HO-48GC-850-S Type A 4ft T5HO 5000K (25 Pack)
Keystone KT-LED25.5T5HO-48GC-850-S 4ft Type A T5HO LED Tube – 25.5W 5000K Smart Drive (25 Pack) The Keystone Technologies KT-LED25.5T5HO-48GC-850-S...
View full detailsKeyston KT-LED15T8-48GC-850-D/G3 Cool White Direct Drive T8 LED Tube - 5000K, 15W, 120-277V, 4'
Keystone KT-LED15T8-48GC-850-D/G3 third generation, Type B (ballast bypass), 15W, 1930lm, cool white 5000K, 4', T8 Direct Drive LED tubes. Direct ...
View full detailsKeystone KT-LED15T8-48GC-840-D/G3 Type B 4ft T8 4000K (25 Pack)
Keystone KT-LED15T8-48GC-840-D/G3 4ft Type B T8 LED Tube – 15W 4000K Single-Ended (25 Pack) The Keystone Technologies KT-LED15T8-48GC-840-D/G3 is a...
View full detailsSylvania 40968 Type A 4ft T8 LED Tubes 5000K (25 Pack)
Sylvania ECOLED16T8L48FG850TYPEA 4ft Type A T8 LED Tube – 16W 5000K ECO (25 Pack) The Sylvania / LEDVANCE ECOLED16T8L48FG850TYPEA (40968) is a 16W ...
View full detailsSylvania 40969 Type B 4ft T8 LED Tubes 3500K (25 Pack)
Sylvania ECOLED18T8L48FG835TYPEB 4ft Type B T8 LED Tube – 18W 3500K ECO (25 Pack) The Sylvania / LEDVANCE ECOLED18T8L48FG835TYPEB (40969) is an 18W...
View full detailsKeystone KT-LED15T8-48GC-850-S Cool White Smart Drive T8 LED Tube - 5000K, 15W, 120/277V, 4'
Keystone Technologies KT-LED15T8-48GC-850-S Type A (ballast compatible), 15W, 2200lm, cool white 5000K, 4', T8 smart drvie LED tubes. Smart Drive ...
View full detailsSylvania 40967 Type A 4ft T8 LED Tubes 4100K (25 Pack)
Sylvania ECOLED16T8L48FG841TYPEA 4ft Type A T8 LED Tube – 16W 4100K ECO (25 Pack) The Sylvania / LEDVANCE ECOLED16T8L48FG841TYPEA (40967) is a 16W ...
View full detailsKeystone KT-LED15T8-48G-8CSJ-DX2 15W 4ft Color Select T8 LED Tubes (25 Pack)
Keystone KT-LED15T8-48G-8CSJ-DX2 4ft Type B T8 LED Tube – 15W Color Select DX2 (25 Pack) The Keystone Technologies KT-LED15T8-48G-8CSJ-DX2 is a 15W...
View full detailsKeystone KT-LED25T5HO-48GC-840-DX2 Type B 4ft T5HO 4000K (25 Pack)
Keystone KT-LED25T5HO-48GC-840-DX2 4ft Type B T5HO LED Tube – 25W 4000K (25 Pack) The Keystone Technologies KT-LED25T5HO-48GC-840-DX2 is a 25W 4ft ...
View full detailsKeystone KT-LED15T8-48GC-830-D/G3 Type B 4ft T8 3000K (2 Pack)
Keystone KT-LED15T8-48GC-830-D/G3 4ft Type B T8 LED Tube – 15W 3000K Single-Ended (2 Pack) The Keystone Technologies KT-LED15T8-48GC-830-D/G3 is a ...
View full detailsKT-LED15T8-48GC-840-S | Natural White Smart Drive T8 LED Tube, 4000K, 15W, 120/277V, 4'
Keystone Technologies KT-LED15T8-48GC-840-S Type A (ballast compatible), 15W, 2200lm, natural white 4000K, 4', smart drvie T8 LED tubes. Smart Dri...
View full detailsKT-LED25.5T5HO-48GC-850-S | Cool White Smart Drive T5 LED Tube - 5000K, 25.5W, 120/277V, 4'
Keystone Technologies KT-LED25.5T5HO-48GC-850-S T5HO LED tube. The type A (ballast compatible) tube replaces F54T5HO fluorescent lamps operating wi...
View full detailsWhy Switch to LED Tubes?
- 40–60% energy savings — A 15W–18W 4 ft LED T8 typically replaces a 32W fluorescent. Type B also removes ballast wattage loss.
- 50,000+ hour life — Two to three times a fluorescent tube, with fewer relamps in offices, warehouses, and schools.
- Instant on, no flicker — Full output immediately. No warm-up, no buzz, no mercury to recycle.
- Type A, Type B, and hybrid A+B — Plug-and-play on the existing ballast, rewire for line voltage, or stock one lamp that does both.
- Field-selectable CCT — Many Keystone and Euri models switch 3000K / 3500K / 4000K / 5000K / 6500K on the tube so one SKU covers a whole building.
- Contractor packs — 2-pack through 25-pack cases for project pricing and fewer cartons on the job.
Type A vs Type B vs Type A+B
Pick the UL type before you pick wattage. The wrong type either will not light or will damage the driver. Full definitions live on our LED tube types page.
| Type | Powered by | Install | Best for |
|---|---|---|---|
|
Type A plug-and-play |
Existing fluorescent ballast | Swap the tube. No rewire. | Fast retrofit while the ballast is healthy |
|
Type B ballast bypass |
120–277V line voltage to the sockets | Remove the ballast. Wire per the spec sheet. | Long-term jobs, DLC rebates |
|
Type A+B hybrid |
Ballast or line voltage | Type A now; bypass later when the ballast dies | Mixed buildings, phased rollouts |
Type C (external driver) is the premium controls path. This collection is focused on Type A, Type B, and A+B — the types most commercial jobs specify.
How to Choose the Right LED Tube
1. Diameter and shape
- T8 — The default 1-inch tube for offices, schools, retail, and most 4 ft strips and troffers.
- T5 / T5HO — Slimmer 5/8-inch tubes. T5HO is common in high-bay fluorescent fixtures (F54T5HO replacements).
- U-bend — Fits 2x2 U-bend troffers. Confirm leg spacing (typically 1-5/8 in or 6 in) before you order.
2. Length
- 2 ft — Under-cabinet, 2x2 fixtures, and short strips. Often 7W–9W replacing 17W T8.
- 4 ft — The volume SKU. 12W–18W T8 replacing 32W fluorescent; 25W T5HO replacing 54W.
- 3 ft and 5 ft lamps are in stock for less common fixtures. Match nominal length, not just wattage.
3. Color temperature
- 3000K–3500K — Warm / neutral for hospitality and some offices
- 4000K–4100K — The commercial default
- 5000K — Cool daylight for warehouses, shops, and task areas
- 6500K — Very cool; use only when specified
CCT-selectable tubes cover several of these with a switch on the lamp. Set them on the ground before they go in the ceiling.
4. Wiring and sockets (Type B)
Type B tubes are single-ended or double-ended. Double-ended models usually work in shunted or non-shunted tombstones. Single-ended models need non-shunted sockets on the powered end. Always follow the manufacturer’s wiring diagram, turn power off at the breaker, and relabel the fixture after a ballast bypass. A licensed electrician is recommended.
5. Listings and packs
For utility rebates, choose DLC-listed Type B or A+B models. Most professional tubes here are glass with a frosted lens, 80+ CRI, and damp-location rated. Order the 25-pack when you are doing a floor or a building.
Common Applications
- Office and school 2x4 and 2x2 troffers
- Retail and warehouse strip fixtures
- T5HO high-bay fluorescent fixtures being converted lamp-by-lamp
- Utility rooms, corridors, and stairwells
- Parking garage and canopy linear fixtures (damp-rated tubes only)
Brands We Carry
Keystone Technologies DirectDrive Type B and Color Select tubes · Sylvania / LEDVANCE ECO Type B and DUALescent A+B · Euri Lighting hybrid CCT-tunable T8. Many models are DLC-listed for rebate programs.
Why Buy from LeanLight?
- Fast, free shipping on every order (ships from Georgia; typically 1–5 day delivery in the U.S.)
- Volume and project discounts on cases and multi-location rollouts
- 30-day satisfaction guarantee with easy returns
- Georgia-based lighting specialists focused on commercial and industrial LED since 2008
Need the type definitions first? Read LED Tube Types (A, B, C, A+B) and Color Selectable LED Tubes. Related collections: Linear Fluorescent Lamps, Fluorescent Ballasts, Lighting Retrofit Kits, and LED Corn Bulbs.
Frequently Asked Questions
What is an LED tube?
An LED tube is a linear LED lamp built to drop into a fluorescent fixture in place of a T8, T5, T5HO, or U-bend fluorescent tube. It produces the same general light with less wattage, no mercury, and a 50,000-hour rated life.
Do LED tubes need a ballast?
Only Type A tubes use the existing fluorescent ballast. Type B tubes require the ballast to be removed or disconnected and the sockets wired to 120–277V. Type A+B hybrid tubes work either way. Check the product title and spec sheet before you install.
Can I mix LED tubes and fluorescent tubes in the same fixture?
No. Do not mix lamp technologies on one ballast. Convert the whole fixture to the same UL type.
How much energy will I save?
Typical savings are 40–60% versus the fluorescent tube being replaced. Example: a 15W Type B LED T8 replacing a 32W T8 plus its ballast often cuts fixture wattage by half or more.
Are LED tubes dimmable?
Most Type B tubes are non-dimmable. Some Type A and Type C systems dim through a compatible ballast or external driver. Confirm dimming on the individual product page.