Review on Enhance your Indoor and Outdoor Blacklight Party Experience with ZHMA 60W LED Black Light Flood Light by Lamar Hopkins
Worked fine for my PCB/thin film photoresist project.
2" x 3" copper clad board with thin film photoresist. I placed the lamp about 3.5 inches above the board with a clear mask over it. I exposed it for about 30 seconds. The film was etched with arm and hammer washing soda and the exposed parts of the film came off easily leaving only the unexposed parts. I could probably shorten the time to around 20 seconds. Tiny bits of unexposed film came loose in the corners, possibly overexposed. But in general I was happy with the result. The intensity of the lamp is more than sufficient to make up for that I chose 60 watts and not 100.
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