Adjustable 15 Kind Current USB Load Resistor Electronic Discharge Resistance Capacity Tester DC Voltmeter Energy Voltage

Features Important Tips The actual current size please according to ohms law I U R Fan CurrentI U R Fan closed state Fan 200mA Voltage range Support QC2 0 5V 9V 12V 20V Compatible QC3 0 3 8 12V 2 Step Android BC1 2 5V Apple 5V 2 4A Lightning Voltage range and MTK PE 5V 7V 9V 12V etc Fast charging pressure rangeK1 20 Ohm 10WK2 10 Ohm 10WK3 4 7 Ohm 10WK4 2 2 Ohm 10W 5 Support QC2 0 5V 9V 12V 20V Compatible QC3 0 3 8 12V 0 2 Step BC1 2 5V Apple 5V 2 4A Lightning Voltage range and MTK PE 5V 7V 9V 12V etc Fast charging pressure range A designed according to the principle of ohms law and through the resistor in parallel through a different switch can produce 15 kinds of resistance of a new USB electronic load resistance discharge when all the switch opens is 2 2 ohm 10W 4 7 ohm 10W 10 ohm 10W 20 ohm 10W 4 kinds of resistance in parallel at the same time in 5V voltage almost can produce 4A discharge current The actual current size please according to ohms law I U R Fan CurrentI U R Fan closed state Fan 200mA Resistor in parallel calculation formula R 1 1 R1 1 R2 1 Rn K1 20 Ohm 10WK2 10 Ohm 10WK3 4 7 Ohm 10WK4 2 2 Ohm 10W 5 K5 Cooling fan wind strength Select or High voltage fan switchNote 1 the load device is working winding resistance caused by large current will produce very very high temperature therefore in the process of use and just use the finished in a short pe