13 5050 LED 24 Volt AC 2.1 Watt 360 Degree BA15S LED Bulb. Works either positive ground or negative ground. Up to 110 Lumen output. Operates at 24 Volts. Available in White 6000K, Warm White 3000K, Red, Green, blue and Yellow. Comparable to a 25 Watt incandescent. Uses up to 2.6 Watts. 360 degree illumination. BA15S base, the diameter is 15mm and the bayonets are even. Uses up to .09A @ 24V = 2.1 Watts.