Miniature LED Bulb BAY15D great for 6 to 12 Volt DC applications, 6V to 12V negative ground or negative chassis. Available multiple colors, please check. 360 Degree viewing angle. Uses the latest technology 5730 SMD Samsung chips up to 320 Lumen output for brake light. This product is polarity sensitive. Please see other same product that is non polarity sensitive. Uses about 2.6 watts. Up to 135 Lumen output for taillight. 6 to 12 Volt DC applications only. Please make sure your application only provides 6 up to 12 volts max DC under a LED load condition. CE and Rohs listed. Made with quality 5730 SMD Samsung led's for long life. This bulb is very bright two filament the brake light and the tail light. This LED bulb is not dim-able. Comparable to a 25 to 30 watt incandescent bulb. The LED lamp has a smaller outline than a normal incandescent bulb so the bulb will fit physically most installations and retrofits. BAY15D, offset bayonets, dual contact with 12 volt. Works great for trailered vehicles since the voltage range can be from 8 to 15 VDC. Can work with 1154 for 6 volt vehicles or 1157 for 12 volt vehicles. Compatible with: 1157 Volkswagen Beetle 1977 Porsche 911 N177071 941-VAG-384 N 17 707 1 1034 7528 2057 2357 2397 3496 12V21/6CP 1979 Triumph TR7 Brake light