General Electric G4S11 Ozone Germicidal Lamp
Developed in the 1940's, this lamp consists of a V-shaped coiled-coil tungsten filament operating inside a bulb filled with argon and a quantity of mercury. When operated on a special ballast, the filament reaches a high temperature and becomes incandescent. Thermionic emission takes place in the low pressure argon around the filament, and leads to ionization of the mercury vapor.
It is a very compact source of ultraviolet radiation, mainly at 253.7 nm and shorter wavelengths, and a source of ozone, which has excellent disinfection and odor-destroying properties.
These bulbs are sometimes labeled “Puritron” or “Odorout” and may also be labeled “Protect eyes” and also “4 watts”.
Power: 4 W
Current: 0.333 A
Voltage: 12 V
UV Output: 0.2 W
Warm-up time: 4 minutes
Average life: 2000 hours
Written on the box:
Do not use more than three lamps per 1000 cubic feet of space in an inhabited room.
Rays of lamp must be shielded from direct view. If not, ordinary glasses and clothing should be worn to protect eyes and skin.
Lamp must be operated with proper ballast. Failure to do so could cause lamp to shatter.
Hauteur • Height • Höhe : 55 mm • 2" 1/8
Diamètre • Diameter • Durchmesser : 34 mm • 1" 3/8
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