Upgrade: Prodmod LED Camera Light – Constant Brightness – Fixed Voltage – Flexible Battery

 

By using an $11 DC-DC boost circuit in the Prodmod LED Camera Light I am now able to power it with one, two, or three batteries and can use either rechargeable or alkaline and still maintain a fixed LED brightness. The brightness of the LEDs remains unchanged until the very last moment when the total battery voltage drops below 1V. The flexibility of the DC-DC boost circuit allows you to use either one or two batteries if I wish leaving room for other items in the case. It also allows you to position your mount stud somewhere else if it better suits your camera.

I tested a 5V circuit and a 3.3V and compiled the results. There is an effect on battery life but its not as bad as you might think.

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