Voltage converters built in over low voltage protection, auto shut off if the battery voltage is lower than 14.4v, protect your 12V devices from over power. Max output current 12V/20A Compatibility: Step down DC voltage converter works with Dewalt 20V MAX battery, for DCB203 DCB204 DCB205 DCB206 (Battery NOT Included).We focus on providing reliable tools. You can save money on the battery and charger if you already have them before Up to 95% Power Conversion Efficiency: Adopt Synchronous Rectification Technology to improve conversion efficiency, Maximum Efficiency:≥95%; Ripple Wave: 50Mv; Starting delay time:≤2S High quality material & Safe to use: The voltage regulator is made of high quality chip and high quality plastic, stable and safe. Mellif voltage regulator provides over/under voltage input, overload, overhead, and short circuit full protection. Widely Application: power 240w, widely used in motor, dashcam, car truck, golf cart, led strip light, electric fan, camera, light ,screen, monitoring system, and DIY etc. Color: As shown Material: Plastic+Metal Package Contents: 1*DW Adapter 1* Voltage Converter 1 set of accessories