On 13/08/2016 14:12, Adam Aglionby wrote:


There will be a small m missing, 5mW 0.005W rather than 5W, 5.00W which wouold be a hazard.

Power density is low, get considerably more exposure to harmful radiation on a sunny day.


Other adverts for the same/similar product have a Class IIIa label stuck
besides the optical output lens. This doesn't mean that it is limited
to 5mW on some Chinese made equipment. The optics after the laser are
obviously spreading the beam so it is probably safe. The more honest
adverts suggests that 3m from the source the beam is so de-focused that
the effect degrades.

However, none of the 6 adverts for the same/similar products, even from
UK sellers, suggest that the product is eye safe or give any meaningful
details about the laser power. One supplier only quotes the BS standard
for a UK 3 pin mains plug!

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