24 volts Pureuv Uv Light AIR Purifier for Ac Hvac Coil 24v 14" Germicidal Bulb with Magnet. 24V VOLTS POWER INPUT -Power supply! (needs to be hard wired to 24v transformer) IF YOU NEED 120V PLUG IN UNIT GO TO THIS LINK: https://www.amazon.com/dp/B015YFRYKE 14" Uv light germicidal bulb Magnetic bracket for easy installation Replacement bulb available https://www.amazon.com/dp/B01GNEO4XK