BA15D LED Headlight 5 To 30 Volt Single Filament Non Polarized. Up to 1800 Lumens. 1142 Configuration meaning ground on one contact and 5 to 30V on the other contact. Up to 30,000 hours for long life. Great for older vehicles generators. Easy to install remove old bulb and install this lamp. Works either positive ground or negative ground. Body made of aluminum for long life. Available in 6000-6500 Kelvin. Great for 6 volt, 12 volt up to 30 volts. Load equalizers may be required, if the bulb will not switch from low beam to high beam or if the bulb flickers when installed. Please install led light load equalizers to fix the problem product code 65832. Full bright at any voltage from 5 Volts to 30 Volts. Uses approximately 1.4A @ 6 volts. Overall length is 2.52 inches. Width is 0.98 inches. Length of the body above the BA15D base is 1.77 inches.