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Medical Examination Light Wall Mounted
- Jan 31, 2018 -

The operating lamp is a lamp with special function. and the invention and application of the lamp has to start from 1809, the British chemist David invented electric arc lamp, man entered the era of electric lighting. For the first time in 1879, in the California Theater of the United States, people used electric arc lamps (electric arc light). In the 1906, Edison invented the household electric light bulb with tungsten filament.Bulb life expectancy of 1000 hours, for Lampholders, basically a year to replace, provided that the use of the manufacturer's designated light bulb.

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