Laser Christmas outdoor projectors..

Adrian Brentnall · 2016-11-30T18:00:09+00:00

HI All I was prompted to investigate these - we like to illuminate the outside (& inside!) of the house, and these looked like a good idea. The one I purchased allegedly had two lasers (red & green) and four different effects. Trouble is - this one seems to be faulty - the ebay seller has refunded my money (bless 'em). The unit has a waterproof momentary push-button on the back, it seems to need a press in order to start the thing working - which is kind of inconvenient as our outdoor lights are usually on a timer, and, even if this unit was working properly, I can't see me nipping outside every night just to push the button! Just wondering if anybody else has one of these new-fangled units - and whether theirs starts automatically when mains is switched on, or if it's a elfin-safety feature of the unit that it requires a digit on the button to start the lasers? The very thin user manual also says that the unit needs to be switched 'off' to cool down for 30 minutes after 5 hours of running... this particular unit doesn't run for more than a minute or so before cutting out, so it's kind of academic Any real-life experiences, please? Thanks Adrian

Nov 30, 2016 41 Replies

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Dave Liquorice 9 years ago

Nearly, each pixel has at least 3 LEDs, red, green and blue. In the 5 V system that is all there is per pixel. In the 12 V system there are three LEDs in series per colour so 9 LEDs total. B-)

Prised it open, some chip that I can't find any reference for controling W2E SOT23 MOSFETs for the switching.

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Tim Watts 9 years ago

Well - OK, I was counting an RGB unit as a single package, which it usually is in the tapes at least :)

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