(2) 6 pk LED Replacement Light Bulb 921 Wedge base Natural White 12V092127-02 27 High power 5050 SMD LEDs Applications include 12 Volt DC only. Not for RV/Trailer use when used with converter. RV power fluctuations can damage a regular LED light. LED Replacement light bulb for 921 bases Low heat, safe to touch, and instantly bright Energy efficient and eco-friendly