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This circuit is 220VAC Flash, Flash light will flash once board detect any light from any source , example : Speed Light,  Flash light will flash short time and off. and then wait for new sound.

Technical Information:
- Connect directly to 220VAC line.
- PCB size  2.18" x 2.83".
- POT to adjust the sensitivity of LDR to detect light
- ST point to connect external trigger
- Application using for the photography. etc

This item is only the board as shown in the photo, no switch / wiring / plug in the package

Download User Manual