Nomenclature of UVC Germicidal Lamp Technology

UV lamp power is characterized in terms of nominal total input wattage as well as nominal total UV output wattage. The nominal UV output power presents a sum of the SPD (spectral power distribution). It tends to differ between LP (low pressure) and HID (high intensity discharge) lamps. The ratio of input power to output power defines the actual efficiency of the lamp. Most LP lamps have efficiencies of 30 – 35%. Efficiencies of HID lamps are much lower (7-11%).

Most of the available UV lamps are identified by model numbers. These included coded information about the lamp. Usually, you can find lamp abbreviations on our lamp data sheets and they are comprised of six parts:

  1. Lamp nominal length
  2. Lamp nominal wattage
  3. Bulb diameter
  4. Shape of lamp
  5. Lamp base (base code)
  6. Circuit or special description

 

GPH287T5L/MNBP & GPHHA1554T6VH/4P

G

AA(AA)

BB(BB)

C

D(D)

E(E)

 / 

FF(FF)

(GG)

Denotes "Germicidal" Lamp

Two to Four Character "Operation" Indicator

Two Digits: Lamp Length in inches

Four Digits: Lamp length in mm

Denotes Tubular Design "T"

Denotes Tube Diameter (Outside Diameter)

Denotes Glass Type:
L = Low Ozone Producing

VH = Very High Ozone Producing

Spacer

Denotes Base Type

Denotes Connection Type

 

PH = Preheat

 

T5 = 5/8" (15mm)

 

 

4P = 4 Pin

SE = Single Ended

 

HO = High Output

 

T6 = 6/8" (19mm)

 

 

SL = Slimline

DE = Double Ended

 

CL = Cell Lamp

 

T8 = 8/8" (25mm)

 

 

MNBP = Mini Bi-Pin

 

 

U = U Lamp

 

T10 = 10/8" (32mm)

 

 

MDBP = Med Bi-Pin

 

 

PHA = Preheat Amalgam

 

T12 = 12/8" (38mm)

 

 

 

 

 

PHHA = Preheat Amalgam Horizontal High Output

 

 

 

 

 

 

 

 

PHVA = Preheat Amalgam Horizontal or Vertical

 

 

 

 

 

 

 

 

Two to Four Character “Operation” Indicator:

  • G = Germicidal
  • PH = Pre- Heating
  • HO = High Output
  • CL = Cell Lamp
  • U = U Lamp
  • PHA = Preheat Amalgam
  • PHHA = Preheat Amalgam Horizontal High Output
  • PHVA = Preheat Amalgam Horizontal or Vertical

Length:

  • 2 digits: in inches (total length in installation, for sleeve length)
  • 3 digits: in mm (base-to-base length)

Tubular Design and Diameter:

  • T = Tubular (1/8 inch)
  • 5 = 5/8 inch (15mm)
  • 6 = 6/8 inch (19mm)
  • 8 = 8/8 inch (25mm)
  • 10 = 10/8 inch (32mm)
  • 12 = 12/8 inch (38mm)

Glass Type:

  • L = low ozone
  • VH = very high ozone
  • H = spliced lamps combinng "L" and "VH" glass
  • / = spacer

Base Type:

  • 4P = 4- pin circline base, single ended
  • MDBP = Medium Bi- pin (G13; 12.7mm)
  • MNBP = Mini Bi- pin (G5; 5mm)
  • SL = Slimline = SP = Single Pin

Connection Type:

  • SE = Single Ended
  • DE = Double Ended 


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