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mjkzz (a.k.a zwdeal): FlashMeter for PC
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mjkzz (a.k.a zwdeal): High Speed Photography Controller
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mjkzz (a.k.a zwdeal): External Battery for flashes.
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mjkzz (a.k.a zwdeal): 6V 4ah SLA battery in a project box
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mjkzz (a.k.a zwdeal): Shematics for 1-To-6 flash device
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mjkzz (a.k.a zwdeal): 1-To-6 Multiple Flash Trigger Device