Originally posted on MAKE:
What do you use to light small objects you’re trying to photograph? MAKE contributing editor and author of the bestselling Make: Electronics book Charles Platt found that electronic flash is overkill and photo lights are too bulky and hot, so he built an array of miniature LED photo lights and shared the how-to with us in MAKE Volume 34.
From Charles’ intro:
On eBay I found complete LED reflector bulbs for just $3 each. They are plug-compatible and identical in size and packaging to the little 12V quartz-halogen spotlights often used in track lighting (although the LEDs have a cooler light temperature of 6,000 Kelvin–very similar to cloudy daylight). … Since each unit was rated at 4W, I needed a 12VDC AC adapter rated to supply at least 40W. Fortunately this kind of switching power supply is commonly available as a power source for laptops and LED displays. I…
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