HJG 4×4 LED brightness controller, also called the OG HJG 4×4 LED Brightness Controller, for dimming automotive and auxiliary LED lights as well as home, office, commercial and industrial LED setups. Its fully dimmable switch changes brightness from 5%-100% and adds 3 strobe modes, with smooth, flicker-free dimming that is easy on the eyes. Setting brightness to actual use reduces power consumption, lowers electricity costs and extends LED life. Durable components handle continuous use, with protection against overheating and overloading. The compact, sleek unit installs simply with clear instructions and intuitive controls suited to non-technical users. It carries a 12 MONTHS WARRANTY.