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本帖最后由 rc5 于 2011-1-9 21:12 编辑
12超到16.5的寿命影响恐怕不是仅仅原来几分之一
Effect of voltage on performance
Tungsten halogen lamps behave in a similar manner to other incandescent lamps when run on a different voltage. However the light output is reported as proportional to V3, and the efficacy proportional to V1.3.[13] The normal relationship regarding the lifetime is that it is proportional to V − 14. For example, a bulb operated at 5% higher than its design voltage would produce about 15% more light, and the efficacy would be about 6.5% higher, but would be expected to have only half the rated life.
(16.5/12)^14=86
假如12V100W的灯泡寿命是1000小时, 16.5V只有11.6小时. 因为你用稳压始终火力全开, 而不象常规灯泡手电电压一直在下降 |
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