<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Brock:
Hey craig The fluorescent part was pulling about 320mA (after 1 minute) and the lamp itself was pulling about 530mA. I wonder if the inverter maintains a voltage or if it drops as the voltage drops,<HR></BLOCKQUOTE>
All high voltage inverters that I am aware of drop off more or less linearly with the input voltage. The output current availability will be first to suffer, then the high voltage itself will begin to sag as well. :X
Don Klipstein (
http://www.misty.com/~don/index.html) is the local guru on fluorescent lighting technology, and may be more well-equipped to answer this question than I am.
But how I understand the technology, when an ordinary fluorescent lamp is operated below its normal parameters, cathode sputtering, mercury condensation, and other nasty side effects can occur which ultimately cause degradation and premature failure of the lamp.
Since the tube in the Arc White is a CCFT (Cold Cathode Fluorescent Tube - it does not use heated cathodes) this problem may not be as bad as it might be in a flashlight using a conventional large-bore, hot cathode fluorescent lamp.
FYI: the tube in the Arc-White flashlight is the same basic type of lamp that is used to backlight the LCD screens of laptop computers, the monitors on digital cameras & camcorders, and miniature television sets.
http://ledmuseum.home.att.net
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