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/15A. This DC voltage converter works for 20V Li-ion battery(Battery NOT Included). The voltage regulator is made of high quality chip and high quality plastic, stable and safe. Provides over/under voltage input, overload, overhead, and short circuit full protection. Widely Application: power 180W, widely used in motor, dashcam, car truck, vehicle, golf cart, led strip light, electric fan, camera, light, screen, monitoring system, solar pad and DIY etc. Power:180W Voltage: 20V Output Voltage: DC 12V Output Current: 15A (Max) Output Rated Power: 180W Efficiency: 97% (half load); 95% (full load) Suitable for 20V Lithium Battery. Note: The incoming goods are separate and need to be assembled by the customer. Colour:yellow+silver Material:plastic+metal Package Contents: 1 x voltage regulator (battery not included) Only the above