Glo Germ Kit 1006 - with 21 LED UV Light This kit contains a hand-held 21 LED ultra-violet flashlight an 8 ounce bottle of Glo Germ Gel and a 4 ounce bottle of Glo Germ Powder, and battery in a case. The LED ultra-violet light runs off of 3 "AA" batteries and is approximately 3 1/2 inches in length. This kit is excellent if you want mobility, since it does not require an electrical outlet. Batteries are included with this light. Sprinkle or wipe some of the power or gel onto you hands. Shake hands with someone, touch surfaces, you will leave traces where ever you go!! See the trail you made by looking at what you touched with a backlight (Ultra-Violet lamp). This show clearly how can germs spread.