Its 5 amps 555/540/545/775/795 Motor Speed Controller
Use this for Low load Application Up to 5 amps like fans, mini cutting, polishing, grinding etc.
Its gives a speed range of 40% to 100% regulation.
Means if a 555 motor has 5000 rpm then you can regulate from 2000 to 5000 aprox.
Package included:
1 x Water Proof Speed Controller