Virtually unbreakable, reliable performance. Available in super white, red, yellow, green, blue and rgb. Uses only 20mA@13.8 Volts DC. Approximate size is .92in x .39in 10 mm(height x diameter). Fits T3 1/4, T3.25 size bulbs. E10 Miniature Screw Base. Short Round LED Light. 1 LED. Durable, shock and vibration proof, instant On/Off. Monochromatic (pure) color, low heat generation, . 6V to 12v DC. This LED lamp has built in ballast that allows the LED bulb to operate from 6V to 15V. Comparable to a 4 to 9 Watt incandescent led bulb. The bulbs works in negative ground or negative chassis cars, trucks, motorcycles, tractors and scooters. Up to 7 Lumen output. Long lasting life up to 30,000 hours. Mini indicator LED lamp. Dim-able using a dashboard dimmer knob. Great for instrument panels, mirrors, door panels, dashboard indicators, glove box, license plate.