Emergency Light Photometric Data

Emergency light photometric data is important in determining the proper illumination levels. In a layout of any such system, it is important to note the effect of voltage loss on any illumination source. In the following example, a 25-watt sealed beam lamp is shown under three conditions: (1) Bulb Design Voltage; (2) Nominal System Voltage; and (3) End of Code Voltage.

1. Bulb Design Voltage: 6.4V

2. Nominal System Voltage: 6.0V

3. End of Code Voltage: 5.25V

20 Watt Halogen, Lamp #H7554 25 Watt, Lamp #4510

High Intensity Tungsten Lamps

6 Watt, Lamp #939

PAR-36 Sealed Beam Lamps

8 Watt, Lamp #7613

8 Watt Halogen, Lamp #H7551

12 Watt Halogen, Lamp #H7553

18 Watt, Lamp #4014