wrote in message
...
On Saturday, 13 August 2016 23:33:03 UTC+1, Graham. wrote:
Peter Parry Wrote in message:
On Sat, 13 Aug 2016 10:29:28 +0100, Davidm
wrote:

Went to a friends barbeque last night and they had two of these in the
garden, one pointing up at rear house wall (including windows), and
another up to a tree at the end of the garden. Looked amazing.

http://www.outdoordecordirect.com/artifact/2336252/

(American site, but available in UK via Amazon and others).

Are these safe and legal, eg. if you happen to look at one from a few
metres away,

megasnip

Couldn't the excessive power be explained by a motor or other
actuators that move the optics?

Sure. It could also be PMPO laser watts. Or anything. Or more likely
nothing. It's an unknown, does not appear to have ever seen any sort of
standard testing, lacks the legal requirements for laser devices, and is
therefore likely to be unsafe. It's a fairly typical 3rd world product,
legal requirements and safety are more miss than hit, and produt claims mean
next to nothing.

NT

This website gives more details of what looks like the same product:
http://www.blistonetech.com/garden-s...r-lights-.html
The 5W is indeed for the motor. The red and green lasers are 100mW and 20mW
respectively.
The website says class 3A safety, but Wikipedia does not mention this class
(new system).
Those powers would be class III B (old system), which is a bit hazardous.
The picture on the following website has a blurry label, looking more like
class III B than III A.
http://www.lightinthebox.com/laser-l..._p4927329.html
The only watttage quoted on that site is "0.5W".
--
Dave W