Ideal for RV and marine fluctuating power sources. Features a 120-degree beam pattern and three (3) 12" T5 tubes with built-in 3-way switch to use one, two or all three LED light tubes. Dome light measures 19. 7" L x 1. 42" H x 6". 100,000 hours life expectancy 8-30 volts DC including 12v and 24v; the wide-range voltage is designed to withstand RV power fluctuations LED fixture includes three (3) 12" LED tubes with T5 base Low heat, safe to touch, and instantly bright Energy efficient and eco-friendly MODEL NO - 9090103