Replace a damaged or burned-out unit with this Green LongLife 12V Multi-Two-Base LED Light Bulb. It is low heat, safe to touch and engineered with wide-range voltage to better withstand RV power fluctuations. This unit replaces a 12V light bulb with a T15 wedge and BA15S/T25 base, popularly known as a 921 wedge and 1156/1141 base. It is instantly bright, energy efficient, environmentally friendly and features a life expectancy of approximately 100,000 hours. Green LongLife LED bulbs come in a variety of lumen ratings and colors, which are each listed separately.