Mechanical Data Technology: Maximum Power Point Tracking (MPPT) Dimensions: 14.50 x 5.75 x 5.50 inches Weight: 10.75 lbs Enclosure Type: Ventilated Enclosure Material: Sheet Metal Chassis Device Mounting: Vertical Wall Mount - Indoor Only Cable Entry: 7/8" and 1" Knock-Outs & Aluminum Heat-Sink Recommended Wire Size: #6 AWG to #14 AWG Total Power Consumption: 2.5W (Tare) Charger Regulation Method: Three-Stage (Bulk, Absorption, Float)/Two-Stage (Bulk, Absorption) Operating Temperature Range: -20 to +45°C