The Original Hi-Amp Power Box: This little box plugs into your 12-24volt power supply and safely reduces the voltage for setting timing on your brushless motor, powering a Motolyser, or powering a motor analyzer. The output voltage is adjustable so you can change it to suit your needs. It features a 24in power input cable and 12in output power cable made of 14awg wire. The digital amperage readout goes to the 0.01 of an amp for extra precision. Every box comes with a pair of 4mm bullets to plug into your power supply and your choice of Deans, 4mm bullets, 3.5mm bullets, or xt60 connector on the output side. They also feature a 10amp current maximum and on/off switch for protection.