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Build your own 18 watt LED light box to fight the winter blues. This lightbox is diffused and dimmable using PWM. If you have a lamp timer, you ...
Light Box 6 x 3W white LED Heatsink Metal box on-off switch 2.1mm DC power jack 12V 2A power supply Cable ties Epoxy putty Twist ties Plastic diffuser ...
For white light, 10,000 lux is recommended. Lower lux levels may be used but it may take longer. For green light, 350 lux is equivalent to 10,000 lux ...
I used this driver because it allows PWM dimming. It was modified to allow the dimming of multiple LED strings. For power supply voltages above 15 volts, the ...
Mount the LEDs with epoxy.
Cut holes for the DC power jack, screws, switch, potentiometer, and heatsinks.
Cut the diffuser. Drill holes on both the metal lid and the sheets. Attach to cover using metal wires.
Wash box with soap and water to remove metal shavings.
Mount the heatsinks, switch, and DC power jack with epoxy putty.
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