SYLVANIA F20T12 / D 20W T12 Day Light 6500K light bulb
- Fluorescent Tubes
- 20
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GE Lighting
Case of 36 fluorescent T8 tubes, 48 inches long, 25 watts, 2400 lumens at 4100K cool white with 82.0 CRI
These 48 inch T8 tubes operate at 25 watts and produce 2400 lumens of 4100K cool white light. A case contains 36 lamps, suited for offices, retail areas or warehouses that need consistent linear illumination. The fluorescent technology delivers a colour rendering index of 82.0 for reliable colour accuracy.
Each lamp fits existing T8 troffers or strip fixtures using the medium bi-pin base, so installation requires no rewiring. The eco construction reduces mercury content compared with older designs, supporting compliance with disposal regulations. Build quality matches the GE Lighting specification for commercial maintenance cycles.
At 25 watts per tube the lamps run cooler than higher-wattage equivalents, reducing load on HVAC systems in large installations. Fluorescent operation produces a faint hum only, which is typical for magnetic or electronic ballasts in quiet zones. Power consumption remains steady across the rated life, simplifying energy budgeting.
| Type | Fluorescent Tubes |
|---|---|
| Brand | GE |
| Watts | 25 |
The 25 W T8 fluorescent tube is designed for compatible rapid-start or instant-start ballasts rated for F32T8 operation; verify the ballast label lists 25 W T8 before installing.
Each lamp measures 48 inches overall with a medium bi-pin base; the fixture must accommodate a 48-inch T8 tube and the standard pin spacing for that form factor.
Install the tubes with the etched end markings facing the same direction and ensure the ballast wiring matches the lamp’s rapid-start or instant-start diagram; reversed leads or mixed ballast types are the most common cause of early burnout.
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