PDR Reflector Board Make it at home Step by step with ease 

Where is light?

Um, they are under 12 bucks online without light.

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It doesn't have light source on it own , you have to put a lamp behind it for use in a enclosed shop without sun light. Another problem is the dark spot the holder cause cause by occupying the corner of the board. But this was informative in general thank you

Pls stop this annoying music

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thickness of the sheet?

what did you use for strifing?

Thanks, nice video. Where do you buy the white plastic board?

Excellent