This Glo Germ™ kit sets you free from electrical outlets. The kit contains a battery-operated LED ultraviolet light, an 8-oz bottle of Glo Gel, and a 4-oz bottle of Glo Germ™ Powder, all packed in a plastic case. The LED light uses 3 AAA batteries (included) and is about 3-3/4" long. 
 
The Gel is recommended where staining may be of concern. The Gel shows up brilliant blue-white under UV light. Comes in an 8 ounce bottle and is used to demonstrate proper hand-washing. This product is more user-friendly than Glo Germ Oil. Each bottle is good for 75 to 100 applications. 
The Glo Germ Powder is used to demonstrate proper surface cleaning as well as the spread of germs, especially in the area of cross-contamination.