Features: 1. Low Power Consumption: The power supply adopts ultra low power consumption chips to reduce static standby power consumption and energy consumption. 2. High Efficiency: This is a compatible MPPT intelligent efficient charge controller, it has efficient charging function to automatically track the maximum power point, 10%‑30% higher than the ordinary controller charging efficiency. 3. Real Time Display: All kinds of real time data are displayed on a display screen, which is convenient for users to check at a glance. 4. Good Heat Dissipation: This solar charge controller is used for USB 5V output for mobile phone and fan charging, dual period control mode, and good heat dissipation performance. 5. Excellent Performance: This solar controller is made of premium aluminum and ABS, it is sturdy and durable, with excellent performance and long service life. Specification: Item Type: Solar Controller Material: Aluminum, ABS Gross Weight: 506g / 17.8oz Product Size: Approx.18.8 x 9.6 x 6cm / 7.4 x 3.8 x 2.4in Voltage: 12V 24V T40A Style: 500W(12V) 1000W (24V) Operating Temperature: -10°C~60°C Storage Temperature: -30°C~70°C Purpose: solar controller Package List: 1 x Solar Controller 5 x Expansion Tube 5 x Short Screw 5 x Long Screw 5 x Nut 1 x Instruction Manual 1 x DC Head Features Low Power Consumption: Utilizes ultra low power consumption chips, reducing static standby power consumption and overall energy usage for efficient operation. High Efficiency: Compatible MPPT intelligent charge controller that automatically tracks the maximum power point, resulting in 10%‑30% higher charging efficiency compared to ordinary controllers. Real Time Display: Conveniently displays various real-time data on the built-in screen, allowing users to easily monitor and assess the charging status at a glance. Good Heat Dissipation: Equipped with dual period control mode and excellent heat dissipation performance, this solar charge controller ensures efficient USB 5V output for charging mobile phones and fans. Excellent Performance: Crafted with premium aluminum and ABS materials, this solar controller offers exceptional durability, outstanding performance, and a long service life.