|Tuffleye's light uses the blue, visible light spectrum, as in Dentistry, because of it's safety factor over UV light. The visible blue light is used to activate the catalyst in the material. The more intense the beam - the faster the cure. The light should be held about 1/4 inch (5 mm) away from the material being cured. We advise the use of the protective eye shield provided when curing the material. Direct Sunlight will also cause the "Tuffleye" material to cure.
High Intensity LED Curing Light 6.5" x 0.5". Uses 3AAA batteries and Light shield. Anodized Aluminum.