BA15D LED Headlight 5 To 30 Volt Single Filament Non Polarized. Up to 1800 Lumens high beam. 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 aluminium for long life. Available in 6000-6500 Kelvin. Great for 6 volt, 12 volt up to 30 volts. Full bright at any voltage.