General Information Sheet
BIRNS Model 4121 Doubly-Safe Chamber Light

General Information

The BIRNS Chamber Light is the world's best and most versatile PVHO lighting fixture. It meets or exceeds applicable Det Norske Veritas (DNV), Lloyd's, and UL requirements. It is versatile, with choice of lamp and lens. Superior thermal design permits the use of higher-output lamps, and BIRNS' exclusive "doubly safe" dual helium release method makes the entire front of the light its own helium release valve.

Applications

The low-voltage Chamber Light is designed specifically to provide "white light" illumination inside pressurized HeO2-atmosphere PVHO chambers.

Features/Benefits

The BIRNS Model 4121 Chamber Light provides:

  • brilliant "white light" illumination
  • small size (Ø76mm / 3" OD), mountable almost anywhere
  • lamp and lens options to make it perfect for most applications

Superior heat-sink design, two helium release methods, low-voltage lamps and a case ground (earth) connection make the Chamber Light very safe to use.

All Model 4121 lamps operate well on AC or DC.

What You'll Need

To operate the BIRNS Model 4121 Chamber Light, you'll need a CEF3S16-x Power Cable Assembly ("-x" is the length in feet). We'll make any length or configuration you wish. Contact us! Optional cable locking sleeves are available in plastic (63A-004) or 316 SS (63A-003).

Need chamber penetrators?

Options
You can customize your new BIRNS Chamber Light, often at no extra cost, to make it ideal for your own requirements. These options are:

Lamp Options
Notes:
  1. Unless specified otherwise, the default "standard" installed in the Chamber Light is 32C-001.

  2. These are the most popular lamps, but others are available. (Applicable Standards' heat output limitations restrict us to max. 50w lamps.) Contact us for details.

  3. All Chamber Light lamps operate well on AC or DC.
 
Lamp Part No.

Volts

Watts
Amps
Color (K)
Output
(Lumens)
Rated Life
(Hours)
32C-001

12

20
1.7
2,925
260
3,000
32C-002

12

50
4.2
3,050
895
3,000
32C-024
24
20
0.9
TBD
TBD
TBD
32C-025
24
35
1.5
TBD
TBD
TBD
32C-015

30

50
1.7
TBD
TBD
TBD

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Lens Options Changing the lens is very quick and simple.

 
Lens

Part No.

Benefit
Application
Clear

35A-007

Greatest light output
General illumination
Frosted
35A-009
Diffuses light beam
Makes "softer" white light
Blue
35A-011
Approximates daylight color
Good for 'ambient' lighting
Blue-Frosted
35A-012
Diffused 'Daylight' color
Makes "softer" blue light

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