The Emergency Glass LED Tube (T10, 4FT) features a glass body with PET film coating and a frosted lens, ensuring durability and uniform light diffusion. Designed as an all-in-one general lighting and emergency backup solution, it operates at 12.5W during normal use and switches to 3W emergency power in the event of a power failure, providing a minimum of 90 minutes of continuous illumination. With 5 selectable color temperatures (3000K/3500K/4000K/5000K/6500K), a CRI of over 80, and a power factor greater than 0.9, it delivers excellent lighting quality for various environments. Please note that this product is non-dimmable. Compatible with T8 & T12 lamp replacements, it supports input voltages of 120-277VAC and features a built-in lithium iron phosphate battery with a lifespan of 1,000 cycles, backed by a 5-year warranty on regular lighting and a 3-year warranty on emergency lighting.