Join Date: Apr 2006
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LEDS. The cheap ones just use dropping resistors, the better ones (more expensive, more reliable, less prone to damage) use "controllers" to make sure they operate at the proper amperage and voltage, regardless of what your ship's power is running at.
Ask the vendor how they protect their LEDs and regulate the power supply to them, and the ones who just mumble? Well, if you buy their product buy spares. Sometimes cheap is good, sometimes it is just more work to do.