Low priced leds, fast shipping
I ordered 10 of these (no longer available from) on June 2cd and received them today. I couldn't wait for the sun to drop to test them out. They are as bright or a bit brighter than the origi...
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Ok, part 2 of my little experiment.
I connected the adjacent contacts of 2 of the adjacent LEDs in the 3 LED string that was not lit, using tweezers with very sharp points. This bypassed the (assumed) wiring on the panel. The 3 LEDs came on, the same brightness as the other 33 on the panel.
Something was wrong on the panel, not the LEDs. I would guess a cold solder joint. No, I'm not going to remove the panel, peel off the sticky tape, try to re-solder the LEDs, etc.
I think this supports Dave-Sparky's work showing that the LEDs are good at higher voltages. The problem is the workmanship/quality control, and they don't need the higher voltages to fail. Probably the failures are accelerated by higher temperatures. The same failures will probably occur with regulated lights when more are being used.
JMHO
I connected the adjacent contacts of 2 of the adjacent LEDs in the 3 LED string that was not lit, using tweezers with very sharp points. This bypassed the (assumed) wiring on the panel. The 3 LEDs came on, the same brightness as the other 33 on the panel.
Something was wrong on the panel, not the LEDs. I would guess a cold solder joint. No, I'm not going to remove the panel, peel off the sticky tape, try to re-solder the LEDs, etc.
I think this supports Dave-Sparky's work showing that the LEDs are good at higher voltages. The problem is the workmanship/quality control, and they don't need the higher voltages to fail. Probably the failures are accelerated by higher temperatures. The same failures will probably occur with regulated lights when more are being used.
JMHO
