Features: *Brand new and high quality. *Made of high-quality materials, you can buy it with confidence. *Long-handled potentiometer adjusts voltage and current, can be operated by hand, no need to use a flat knife. *With large heat sink and shell *LCD displays input and output voltage, temperature, output current and output power. *Hardware protection: input anti-reverse connection protection, reverse connection will not burn; output anti-backflow, no need to add an anti-backflow diode when charging the battery; *Software protection: overcurrent protection, overpower protection, overtemperature protection. *Can boost or buck, output voltage 0.5-30V arbitrarily adjustable, current limit 0-6A arbitrarily adjustable; *Button controls the output ON/OFF state, and can set the power-on default to ON or OFF. Specifications: Product Name: Adjustable Buck-Boost Power Supply Module Size: As shown in the picture Color: As shown in the picture Material: ABS Product Specifications: 35W Fanless Version Output Voltage: 15~24V Output Current: Fanless Version can work stably at 4A for a long time Output Power: Fanless Version 35W Package Content: 1*Adjustable Buck-Boost Power Supply Module Note: 1. The actual color of the product may be slightly different from the picture shown on the website due to various factors such as display brightness and light brightness. 2. The data may have slight manual measurement deviation. Brand new and high quality. Made of high-quality materials, you can buy it with confidence. Long-handled potentiometer adjusts voltage and current, can be operated by hand, no need to use a flat knife. With large heat sink and shell LCD displays input and output voltage, temperature, output current and output power.