The ETI 15 W 1900 Lumens LED 4 ft glass tubes offer exceptional performance for precision lighting applications. These 4 ft linear LED tubes are high-quality replacements for fluorescent lamps. They are UL listed for use in damp locations and are RoHS complaint with no lead or mercury. Non-dimmable. Warranty period 5 years or 60 months. Suitable for installations from -13 to 113 deg F.