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After about eight years and a similar failure last year, this came as no surprise: It’s a W5W “parking light” in the same fixture as the melty halogen high-beam bulbs (used as daytime running lights at half power), so it gets toasted on those occasions when we drive somewhere. The adhesive holding the LED strip…

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The efficiency drops off pretty much linearly
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There being zero volts across the diodes, they don’t leak in either direction
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If you think they’ll be any more secure than any other online personal information, you’re wrong
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I cut my losses and tossed the hose and the sprayer.
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After that, though, it looks just like I’m cheating, doesn’t it?
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That honkin’ big photodiode is a surplus PIN-10AP that’s been lying in wait
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The poor thing would be much less conspicuous snuggled into a tree