Mega tree power supplies in an enclosure?

[n8huntsman]

I'm building a mega tree with 32 strings of 42 pixels. I can't find large enough waterproof supplies so I'm thinking of using two of these: http://www.aliexpress.com/fm-store/7...-approved.html

Anyone have a better power supply to use? At .3w a piece I will need 400watts, so I'm shooting for 500w total to be safe. Can I place two of the above supplies in enclosures beneath the tree or will heat be an issue since there will be no air flow?

[angus40]

Try http://www.diyledexpress.com/

[budude]

I'm building a mega tree with 32 strings of 42 pixels. I can't find large enough waterproof supplies so I'm thinking of using two of these: http://www.aliexpress.com/fm-store/7...-approved.html

Anyone have a better power supply to use? At .3w a piece I will need 400watts, so I'm shooting for 500w total to be safe. Can I place two of the above supplies in enclosures beneath the tree or will heat be an issue since there will be no air flow?

The "datasheet" from Ray says it runs with open/free air - - but the picture clearly shows a fan there. I'm thinking that pumping 400 W will generate a LOT of heat - you will probably need a decent amount of cool air coming in. Have you looked at those marine battery boxes that Dirk pointed to a while back? I'm thinking those might allow enough air - perhaps some type of snorkel arrangement with PVC could direct air right to the intakes.

[n8huntsman]

I have not seen those boxes but will look for them. How is everyone else powering their trees?

[boarder3]

jim told me to order a 200w ps for the 681 board and they were waterproof for same price i got them from ray wu. If you need me to i can find the model number from him. they worked great.

[Materdaddy]

Here's the thread you mentioned earlier. The exact power supplies I'm using are these:
http://www.circuitspecialists.com/7....er-supply.html