100,000 hours life expectancy; turn to adjust directional beam of light;8-30 volts DC including 12v and 24v; the wide-range voltage is designed to withstand RV power fluctuations;LED Replacement Tube for 18 light tubes with T8 base;Low heat, energy efficient, eco-friendly, and instantly bright;Comes with easy-to-install instructions

• Green LongLife 3528101 LED 18 Replacement Light Tube with T8 base 500 Lumens 12v or 24v Natural White

Green LongLife 3528101 LED 18 Replacement Light Tube with T8 base 500 Lumens 12v or 24v Natural WhiteMing's Mark