The Marshall CV-H20-PWR is an AC24V power supply that affixes to the back of the CV-H20-HF Weatherproof Camera Housing (sold separately) to supply power to its internal fan and heater. The CV-H20-PWR Power Supply attaches easily with minimal setup, and has a die-cast aluminum body that is IP68 weatherproof rated and IK10 vandal-proof rated. Suitable for wall mounting with open access for wiring and service.