BA15D 1158 12 Volt 60 SMD 5730 Dual Filament Reduced Profile. This bulb is a dual filament 1158. Works either positive ground or negative ground. Up to 900 Lumens for the brake light. Up to 500 Lumens for the taillight. Made with 60 SMD led's, 44 side firing and 16 forward firing, so its super bright. Long life up to 30,000 hours. The base is BA15D for 15mm diameter, even bayonets and two contacts on the bottom. The bulb can be dimmed using variable voltage supply such as your dash board dimmer switch. Available in White 6000K, Warm White 3000K, Red, Yellow/Amber, Green and Blue. If the color attribute is not shown it means that we are out of stock of that color and usually takes 4 to 8 weeks to restock that color. Maximum overall length is 1.694". The maximum overall diameter is 1.058". Uses about 1A @ 6.3 Volts for the brake light. Each bulb filaments is tested before shipping. Comes 1 per package. Load equalizers may be required since led lights do not draw as much wattage as a incandescent bulb. CE and Rohs.