12-Watt 4 ft. Bypass Ballast Linear T8 Power Either End Glass LED Tube Light Bulb, 1800 Lumens 5000K 120-277V (25-Pack)ETi's 4 ft. LED 12 Watt LED T8 Integral Driver Linear Glass Tubes can be retrofitted without removing the electronic ballast from the existing fixture. These LED tubes are RoHS compliant with no lead or mercury. Emits 1800 Lumens of brightness 5000K Daylight using only 12 Watt of power saving you energy, the environment and your wallet. They are exceptional for precision lighting applications such as kitchens, basements, classrooms, school hallways,