Phimore Regulated Mobile Auto/Marine DC-DC Power Converter, 3-6-9-12 VOLTS DC; BE19 Designed to power battery operated equipment (radios, TVs, recorders, etc.) drawing up to 1 amp. current (1000mA) For cars, boats, trucks, snowmobiles, etc Completely regulated and maintains voltage constant within 1 Volt Comes with 6 adapter plugs to match nearly all applications Cigarette lighter circuit is protected from overloads by a 2-amp fuse