Everbright 10PCS White S25 1157 BAY15D / 1034/1016 Base 18 SMD 5050 LED Replacement Bulb for RV Car Brake Light Lamp Backup Lamps Bulbs Day Running Light (DV-12V) Light Base Type: S25 1157 BAY15D Led Bulb ,LED Chip Type: 5050 18-SMD ,Inpute Voltage: DC 12V ,Light Color: Cold White,Size(Approx): 49.3 x 14.8MM(L x W) Interface Width: 14.8MM 10Pcs x LED Replacement light bulb for bulbs with BAY15D S25 Base, Popularly known as 1157 Base Cross Reference : 1157 BAY15D = P21/5w S25 7528 2057 2357 1157A 1016 1034 1130 1152 1154 1158 1493 2057 1178A 1196 2357A 2396 2397 3496 3497 12499 12594. S25 1157 LED Buld Widely Used in Car Rv Suv Camper Tralier Truck Motorcycle for Turn signal Light, Backup Reverse Light, Daytime Running Light, Brake Light ,Tail Light,Rear Light, Parking light, Stop Lamp, Corner Light, Side Marker Light, Exterior Interior Lights etc With 1157 led Wedge. 1157 replacement bulb fit car 1157 standard bulb and can be direct to replace incandescent bulb. Brand new and high quality bright ;Point to point welding, the light body structure and firm, not easy to damage ;50000 working hours,Extremely long lasting life,Stable performance ;light weight, Easy installation, just plug & play;Green and enviroment-friendly products, safe and reliable CE Certified. Package included: 10 x BAY15D 1157 Led Bulb White, NoteWhen using LED bulbs for turn signal, you may need to use load resistor or decoder set to prevent hyper flash or bulb malfunction.