Green LongLife 5050122 LED Multi-2-base Replacement Light Bulb with 921/Wedge & 1156/1141 bases 250 Lumens 12v or 24v Natural White 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 Multi-2-base Replacement Light Bulb for bulbs with T15 Wedge and BA15S/T25 bases, popularly known as 921 Wedge and 1156/1141 bases Low heat, safe to touch, and instantly bright Energy efficient and eco-friendly