Electrical parameters input parameter Input range: 10V-90V Rated input voltage:12V/24V/48V/60V/72V transfer efficiency:95% incoming line:15-16CM(R+ B-) output voltage:5V Output:3A MAX Maximumoutput:15W MAX No-load adjustment rate:1% load regulation:2% quiescent dissipation:≤20MA ripple wave:200mVP-P The oscilloscope bandwidth is 20 MHz, and the test end is connected with 10 μ F electrolytic capacitor and 0.1 μ F ceramic capacitor. enviromental parameter working temperature:-20-65° Storage temperature:-40-85° Working humidity:10%-90%RH defencive function classification of waterproof:IP67 Other Weight:0.22 lb Size:2.60*2.24*0.87 inch Heat dissipation method:natural heat dissipation 5V3A Voltage Regulator Connections: Input: Red (+) Black (-) Output: USB-A socket Instructions for connecting the product terminals: Step 1: Remove approximately 10 mm of insulation from the cable. Step 2: Remove the boost key and insert the cable. Step 3: After inserting the cable, press the booster key firmly. matters need attention 85.memory:The products are stored in a dry and cool place with a temperature range of-40℃ ~80℃, and avoid contact with corrosive substances, and stay away from fire and heat sources. 86.Do not use it near a heat source (such as a fire or a heater). 87.Do not connect the input line to 220V electricity. 88.Do not put the product into the fire or heat it. 89.Do not short-circuit the positive or negative poles of the product with wires or other metal objects. Non-professional personnel are prohibited to disassemble and repair by themselves. Protection: short circuit protection, overheating protection, overcurrent protection, reverse polarity protection (Please note that the positive and negative wiring must be correct, otherwise it may lead to permanent damage to the product).