Performance of electronic ballasts and other new lighting equipment. Final report
This study discusses parameters for selecting the most suitable auxiliary lighting device to operate and control gas-discharge lamps. The devices tested in this study include solid-state fluorescent and high-intensity discharge (HID) ballasts; current limiters; and dynamic lighting controls. They have been evaluated in combination with the standard 40-W, F-40, T-12, rapid-start, cool-white fluorescent lamps. Solid-state ballast performance varied widely- from 68 to 79 lumens per watt (lm/W) in efficacy and from 0.83 to 0.98 in ballast factor. System efficacy was up to 26% higher than standard core-coil ballast efficacy. Current limiters used with standard core-coil ballast reduce light output and input power by 30 to 50% and may be suitable as retrofit devices to reduce light in overilluminated spaces. When operated at a constant lamp wall temperature, these devices either maintain or reduce system efficacy.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5910008
- Report Number(s):
- EPRI-EM-4510; ON: DE86009589
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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