This T10 Wedge base width is 0.36inch, please check your original bulb's base before purchase. 12volt ac/dc T10 3Watts LED Bulb is not waterproof, please use it in dry environment/protect from water (not total enclosed fixture). | Designed for T10 wedge 921 922 912 194 168 halogen replacement for interior automotive car RV motorhome trailer camper marine yatch boat lighting. Pefect for outdoor landscape garden yard patio path driveway step deck walkway light fixture with T5 or T10 wedge socket. | Easy Installation: T10 miniature wedge base direct plug-and-play 12olt 24volt low voltage, much less heat than halogen bulb, can reduced operating temperatures among all LED lighting inside your travel trailer RV. | 3W 300Lm AC10-18V/DC12-24V, high color rendering index 83Ra, more vivid. 2700K warm white color lights are offered with 360 degree beam angle. | 2 years warranty: This T5 T10 wedge base led bulb is with good heat sink design and high-quality driver inside to ensure long lifespan, save effort and maintenance costs on changing light frequently. If any question, please click "contact the seller".