Waterproof DC 36V-48V to 24V 480W 20A Step-Down Supply Converter Regulator IP68

Feature: 100% brand new and high quality. Waterproof, Shockproof Design. Aluminum Outer Case material, long term stable and reliable. Thin, small size, high efficiency and easy to install. Purpose : Car alarms, radio, intercom, electric motors, audio, navigation, surveillance, LED car display, air conditioning, fans,solar energy, photovoltatic energy, DVD, LED lights, motors, pumps, and industrial electrical equipment, etc. Input wire color : (+)Red, (-)Black. Output wire color: (+)Yellow, (-)Black. Note: Please be remind to make sure wiring carefully & correctly. No wiring reverse short-circuit protection for this device. .

eBay