how much do the materials used in making an LED light bulb cost?
I’m doing a little research for my math class, and I need to know how much the LED light bulbs cost in materials. All the sites I’ve found only cover store or wholesale cost, or the cost of electricity. Anyone know the cost or a website that has it?
LED’s don’t have to be replaced.
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Tags: diy, electronics, howto, led, led light bar, led light bulbs, led light strips, led lights, led lights for cars, lighting