jw@mck-csc.mckinsey.com (Jeffrey Weiss) (12/07/90)
rsnider@xrtll.UUCP (Richard Snider) types: >Lastly, I am suspicious in general of many of the "indoor" halogen >types of lights. To get maximum "light for the buck" a halogen bulb >must be run a LOT hotter than the ones I see in stores are. Specifically >I have done quite a bit of theater lighting using lots of halogen >equipment, and usually when a light is on full, in order to get >proper re-deposition the quartz tube will glow bright red. It will >also keep glowing for several SECONDS after the light is shut down. I'm trying to understand this. I have two different types of halogen fixtures at home. One is by LSI (seen mostly in stores, malls, etc.) that uses 12V 75 watt MR-16 lamps. The others use 12V 50 watt small bulbs. Both of these glow for several SECONDS after the switch is thrown. This is the reaction I have seen most often with all halogen fixtures I've had a chance to turn on and off. I have a hard time figuring out what color the tubes glow when at full power since (even at these modest wattages) I can't look directly at them without going blind! For what reason would these lights be run not hot enough? -- jw@mckinsey.com (...mit-eddie!mck-csc!jw) Jeffrey Weiss