Welcome to our store! 1. INTELLIGENT SYSTEM: The solar charge and discharge controller adopts automatic identification of system voltage level and intelligent PWM charging method. 2. LARGE DISPLAY: The solar charge controller has a large LCD display, graphical LCD characters, and simple button operation. 3. COMPLETE PROTECTION: Built-in accumulation of charge and discharge safety hours, battery reverse discharge, undervoltage, reverse connection, overload, short circuit protection. 4. TEMPERATURE COMPENSATION: The solar charge and discharge controller has automatic temperature compensation, adjustable charge and discharge control parameters. 5. PVC MATERIAL: The shell of the solar charger is made of PVC material, which is insulated, heat-resistant, and has a long service life. Item Type: Solar Charge Controller Material: PVC Product Size: Approx. 13.3 x 7 x 3 cm / 5.2 x 2.8 x 1.2 inches USB Output: 5V Output Method: USB Conversion Rate: 98-99% Working Temperature: -35℃-60℃ Scope of Application: Solar panels, etc. Weight: Approx. 141g / 5oz 1 x Solar Charge Controller Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.