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 Replacement light bulb for bulbs with 921/T15 Wedge base;Low heat, safe to touch, and instantly bright;Energy efficient and eco-friendly

• Green LongLife 5050130 LED Replacement Light Bulb Tower with 921/T15 Wedge base 200 Lumens 12v or 24v Natural White

Green LongLife 5050130 LED Replacement Light Bulb Tower with 921/T15 Wedge base 200 Lumens 12v or 24v Natural WhiteMing's Mark