The revolutionary Quasar LED lighting system is the best possible lighting solution available for your magnifying visor. The fixture snaps over the Optivisor lens plate and significantly increases visibility in any environment. Six strategically placed LEDs around the frame allow for unmatched clarity of image while decreasing and virtually eliminating shadows. The lightweight Quasar easily fits onto your magnifying visor and will run continuously for weeks on a single set of batteries. Includes 2 AA batteries. This item will not interfere with other Optivisor attachments or accessories for your optical visor such as a loupe attachment. This LED optical aid is a great option for individuals who work on meticulous projects, precision cutting, soldering, or for general optical assistance.