... need light indoors.FUNCTION: Achieve within 10 meters distance remote control, two levels remote control,3 LEDS on (energy saved style) or 23 LEDS ... . USE 4 PCS AA BATTERIES, NOT INCLUDE.2. PRESS POWER BUTTON, 20+3 LED ON, REMOTE ON.1) PRESS 1ST TIME, 3 ... LED ON.2) PRESS 2ND TIME, 20+3 LED ...