Enerdrive PWM 30A Solar Charge Controller benefits include: Protects battery from overcharge and discharge 12/24V auto detect Handles up to 30 Amps of Array Current Handles up to 450 Watts of solar power Maintenance free protection of your solar panel and batteries Maintains battery voltage Maintain 12/24V batteries in a fully charged state Product Features: Informative backlight LCD display indicates solar charge input, charge/load output Volatage/Amps Selectable battery type Sealed, Flooded & Gel 2 x USB Outputs 2.4A Full output operation up to 55oC Temperature compensation High precision on voltage set point Wall mountable