【Premium Quality】Industrial grade DC 48V to 12V step-down converter. Automatic recovery when the device resumes normal operation. 【Power conversion efficiency up to 95%】Adapted with timing rectification technology and built-in smart chip, the voltage converter provides input of over/ under voltage, overcharge, overload and full short circuit protection 【Waterproof and anti-shock protection】Designed with aluminum shell and silicone sealed, don't worry about using it in harsh weather. rain. Moisture-proof, dust-proof. 【Widely Application】High power 240w, widely used in motor, dashcam, car truck, vehicle, golf cart, led strip light, electric fan , camera, light, screen, surveillance system, solar pad and DIY etc. 【Shell Aluminum & Silicone Shell & Sealed Design & Protections】 Waterproof, Shockproof, Moisture-proof and dustproof, more durable. Overload, overcurrent, overtemperature, short circuit, overvoltage.