Hi, my name is Fred Flemming The Color Changing and single color bottle lamps by Bodacious Bottles are handmade by me in Derby, CT USA from actual re-purposed glass bottles. They feature tiny glass crystals applied to the inside surface of the bottle for an amazing diamond like sparkle and glow. The light source for my color changing lamps ia a RGB LED that provides your choice of 16 different colors. Included is an infrared remote that turns the lamp on or off, changes the color, and switches the lighting effects between flash, strobe, fade, and smooth. The 3 or 4 bottle photo shows 3 of the 16 different colors you can choose with the remote control. All my color changing lamps have a USA plug, are 85-265 volts and can be used worldwide with a simple adapter.