1、PWM Charging: This solar controller adopts an intelligent three stage PWM charging mode, with 12V 24V 36V 48V full stage automatic recognition. 2、Multiple Protection: Battery over discharge, over voltage, undervoltage, reverse discharge protection, load over current, short circuit protection, solar panel, battery reverse connection protection, etc. 3、4 Modes: 24H general controller mode, 1‑23H light control delay mode, 0 pure light control mode, and CH reverse light control mode. 4、2 USB Interfaces: The controller has 2pcs 5V 2A USB interfaces, backlit LCD display, dynamic display of equipment operation data and working status, simple button operation. 5、Heat Dissipation: ABS material, high strength, impact resistance, high burning point, anti aging and other characteristics, effectively improves the service life and safety level, the aerodynamic heat dissipation plate is made of aluminum alloy, greatly improving the heat dissipation performance of the controller. Item Type: Solar PV Controller Material: ABS, Aluminum Alloy Gross Weight: 966g / 34.1oz Controller Working Voltage: 12V 24V 36V 48V automatic identification Input Voltage: ≤100V Operating Temperature Range: -20℃~50℃ Storage Temperature: -30℃~70℃ Working Humidity Range: 10%~90%, no condensation Protection Level: IP30 1 x Solar Controller 1 x Instruction