Always wanted a green laser pointer, but never got around to purchasing one? Well, you’re in luck, this one is currently on sale for just $9.99 (normally $149.99). Boasting “a high-intensity, 532nm wavelength and powerful output of <5mW, this laser pointer will shoot up to 10,000 feet (less in daylight).” Product page. Continue reading for a video tutorial on how you can transform this laser pointer into a super powerful version for free.

[via Amazon]

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