1、Adjustable voltage, this is a non‑isolated dc power converter module with long service life, high power and stable output. 2、97% high conversion efficiency, high quality components ensures high conversion efficiency, up to 97%. 3、Widely application, this boost power module is widely used for high power solar street lamp driving, various LED light, cv driving, vehicle‑mounted and mobile device power, DIY adjustable CV CC power, solar power charging, and various batteries charging. 4、Designed with smart temperature control fan ‑‑ which will automatically work when temperature reaches about 60, and stop when temperature drops below 60. 5、This voltage step up converter is made from quality printed circuit board and aluminium, which is sturdy and durable. Item Type: Voltage Step Up Converter Material: Printed Circuit Board and Aluminium Module Type: Non-isolated Boost Module (boost) Output Current: 22A Maximum. Please Strengthen Heat Dissipation if It Exceeds 15a (related to the Input and Output Pressure Difference, the Greater the Pressure Difference, the Smaller the Output Current) Constant Current Range: 0.8-22A (+/-0.3A) Reverse Input Protection: Yes (150A Power Mos Anti-reverse) Working Frequency: 150KHz Input over Current Protection: Yes (input over 40A, Automatic Protection, Power Supply Does Not Boost) Short-circuit Protection: Yes (input 60A Fuse) Please Operate Carefully, Please Do Not Short-circuit Randomly. Reverse Input Protection: Yes (150A Power Mos Tube is Anti-reverse. It Can Be Reversed for a Long Time) Installation Method: Four 3mm Copper Standoffs Wiring Method: Terminal Block (Please Use High-current Pure Copper Wire) Module Size: Approx. 130 x 52 x 75mm / 5.11 x 2.04 x 2.95in 1 x Voltage Step Up Converter 1 x Pillar 4 x Nuts