7 color changing LED light bulbs, or RGB LED Light Bulbs. The remote effects color changes and action modes as well as powers it on and off. E27 standard household or medium base screw-in LED light bulb. A single Remote can control up to 6 RGB LED light bulbs within the IR receiver’s sensing range – up to 20 meters. The IR’s sensing ability maybe hampered by distance, humidity and other IR sensing devices in the area. Please order Remotes separately below.