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Dangerous tattoo remover from eBay is a MILLION watt laser

styropyro · demo · Watch on YouTube

Electronics & circuit designEveryday physics & science demos

What it is

Styropyro tests an eBay laser tattoo removal device and finds it is a roughly million-watt pulsed laser, powerful enough to ignite air in the beam. He had bought it hoping to salvage an Nd:YAG laser cavity.

Why Hacker News recommends it

HN mostly cites it as an example of the absurdly powerful lasers sold cheaply online, and a nod to the channel's DIY laser builds.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2020, last 2022

What HN commenters said

  1. “builds insanely strong lasers with basically salvaged junk electronics.”

    Builds extremely strong lasers from salvaged electronics

    adamsmith143, 2022-09 · Recommendation · in “Neutralisation of cockroaches with laser automated by machine vision”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: lasers, nd:yag, tattoo removal, electronics, laser safety

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