For indoor use. LED BUILT-IN. Replaceable. With remote control. Option to adjust to 3000K/4000K/6000K. Down rods (150mm + 300mm). Reversible blades for summer (forward mode-anticlockwise) & winter (reverse-clockwise) mode. Timer mode for 1, 2 and 4 hours. Advanced energy efficient DC motor uses up to 70% less energy than standard AC ceiling fans.