Glass ballast bypass DLC V4.1 T8 2 ft 9 W 1100 lm 3500K non-dim 80CRI 120-277 V. Frosted lens for uniform diffuse appearance. Select items feature PET coating to protect glass envelope and reduce risk of breakage. No external ballast or driver required. Up to 50% instant energy savings. Existing fixture maintains original UL compliance per UL1598C listing. Suitable for use in totally enclosed fixtures (excluding U6 items). Integral drivers provide easy installation. For use with non-shunted tombstone lampholders. UL 1598C Listed. Non-dimmable. Suitable for commercial, industrial, hospitality, education, healthcare, retail.