How bright is a 20 watt laser on the wall? The answer as always is "it depends" but instead of just explaining it, here's a quick video to show you how much the ambient light level affects laser brightness.
How bright is a 20 watt laser on the wall? The answer as always is "it depends" but instead of just explaining it, here's a quick video to show you how much the ambient light level affects laser brightness.
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