The GBX-2 is a Kodak universal safelight filter for dental darkrooms. They are ideal for darkrooms where both intraoral and extraoral film are processed, but also may be used where manual processing is performed, provided that film handling under safelight conditions is limited to approximately 2 1/2 minutes. Salfelight filters require a frosted bulb of 15 watts or less and should be at least 4 feet (1.2 m) from the film. Also, GBX-2 Safelight is avaialble in multiple sizes.