I beat the first two puzzles but then there was a light bulb in the third one that I couldn't click with no adjacent bulbs to turn it on for me.
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I think a tutorial for all the mechanics as well as some sort of visual indicator for the bulbs you can't click (maybe a box around them or something) would go a long way. When I got to the dots, the first three levels I accidentally completed in a click or two and had no idea what they actually did, which ended up getting me stuck on the next level.