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Old 02-12-2012, 10:21 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,109
Lower cost..
current limitation relies on internal resistance of batteries, and voltage close to threshold voltage of LED's.. but it is not good for LED's working life, because higher currents at switching on will (slowly) cause deterioration of LED's
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