40 watt, 2 ft length florescent bulbs used in the production of Photosensitive Glass. The exposure of Photosensitive glass is in many respects similar to that of ordinary photographic material. It differs mainly in the fact that the exposure requires UV peak radiation, and usually requires considerably more exposure time. After UV exposure only a "latent image" results which is not visible. Development by heat is required. This bulb can be used with Gaffer #80 Ruby. Click related link below for more information on usage.

WARNING: Read and follow instructions before use. Must be fully enclosed when in use.

Wear protective eyewear: Failure to may result in severe burns or long -term injury to the eyes. Do not expose skin or eyes while bulbs are turned on. Can cause eye and skin injury and allergic reaction.

Use with K-FIXTUR-E40 AND K-BALLAS-T40. Assembly required.