Take any household light bulb and turn it into a sensory lightshow with this bulb adapter from Zeus This ingenious conductor piece along with any standard size bulb creates a brilliant light display upon the skin while delivering precise electro sensation Larger light bulbs have more surface area so the electro intensity is lighter, but the lightshow is greater, smaller bulbs have a higher intensity. Simply plug the adapter into your Zeus Twilight Wand (sold separately) then screw the bulb of your choice into the threaded top of the adapter. Now you are ready to be the conductor in your very own electric light show Measurements: 3.5 inches in length, 1.5 inches wide, 0.75 inches inner diameter. Material: Metal, plastic. Color: Red. Note: Twilight wand and bulb not included