Standard Germicidal Lamps

Standard germicidal lampsLamps manufactured by First Light are made of pure quartz tubing versus soft glass to maximize the lamps usable life.  Soft glass lamps have reduced output and shorter usable life due to the negative effects of solarization.

First Light Technologies’ products are used in the disinfection of municipal wastewater, industrial process water and primary drinking water. First Light’s lamps are also used extensively in the disinfection of air and HVAC systems.   Additional applications include food and beverage processing and ink curing applications.  First Light’s full line of germicidal lamps is designed to provide the highest level of performance for each of our partner’s applications.

First Light Technologies’ manufacturing process allows us to provide our customers with lamps customized to fit their specific application.  Details such as lamp diameter, length, base configuration and operating currents can be tailored to fit the OEM needs.

Instant-Start Lamps

Lamp Type Base Face
Base to Base (mm)
Arc Length (mm) Lamp Diameter (mm) Lamp Wattage Lamp Current mA Lamp Voltage
V@ 50Hz or 60Hz
UV Output
UVC Watts
UV Output @ im
(µWatts/cm2)
Rated
Life Hours
G10T5L/C 357 281 15 17 425 51 5.7 56 9000
G36T5LCA/C 843 767 15 42 425 100 14.4 150 9000
G36T5LCA/HO/C 843 767 15 75 800 95 25 240 9000
G64T5LCA/C 1554 1478 15 75 450 175 30 260 9000
G64T5LCA/HO/C 1554 1478 15 145 800 180 48 385 9000
G10T5L/C 357 281 15 17 425 51 5.7 56 9000

Note: * UV output is measured at 253.7nm at 100 hours under laboratory conditions.
Output may vary under actual operating conditions.
* Base face measurement is from base to base, not including pins.
** Lamps are also available in both Pure Quartz (VH) or Synthetic Quartz (VHS

Preheat-Start Lamps

Lamp Type Base Face
Base to Base (mm)
Arc Length (mm) Lamp Diameter (mm) Lamp Wattage Lamp Current mA Lamp Voltage
V@ 50Hz or 60Hz
UV Output
UVC Watts
UV Output @ im
(µWatts/cm2)
Rated
Life Hours
GPH212T5L 212 136 15 12 425 28 2.8 27 9000
GPH212T5L/HO 212 136 15 18 800 23 5 50 9000
GPH287T5L 287 211 15 17 425 40 4 40 9000
GPH287T5L/HO 287 211 15 27 800 34 7.5 75 9000
GPH357T5L 357 281 15 17 425 51 5.7 56 9000
GPH357T5L/HO 357 281 15 32 800 40 10 95 9000
GPH436T5L 436 360 15 26 425 62 7.3 72 9000
GPH436T5L/HO 436 360 15 42 800 53 13.5 125 9000
GPH793T5L 793 717 15 48 425 113 13.5 125 9000
GPH793T5L/HO 793 717 15 72 800 90 24 210 9000

Note: * UV output is measured at 253.7nm at 100 hours under laboratory conditions.
Output may vary under actual operating conditions.
* Base face measurement is from base to base, not including pins.
** Lamps are also available in both Pure Quartz (VH) or Synthetic Quartz (VHS).