Murray And Nadel's Textbook Of Respiratory Medication: 2-Quantity Set > 자유게시판

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This property contrasts with mercury vapor HID lamps, which develop into dimmer towards the end of life to the point of being ineffective, whereas consuming undiminished electrical power. Modern LPS lamps have a service life of about 18,000 hours and don't decline in lumen output with age, although they do enhance in vitality consumption by about 10% towards finish of life. The top caps of the arc tube would get as hot as 800 °C (1,470 °F) in operation, then cool to room temperature when the lamp was turned off, so the electrode terminations and Vape Outlet arc tube seal had to tolerate repeated temperature cycles.

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