Aquarium contains plants, sorry should've stated that. But thought it was irrelevant.Ravenous wrote:Please don't take this the wrong way, but that LED is far too powerful. Unless the aquarium is museum-sized!exzile wrote: I am new to electronics and am still in the beginning learning phase.
No that's fine, I assumed you'd have plants, fish or other creatures living in there.exzile wrote:Aquarium contains plants, sorry should've stated that. But thought it was irrelevant.
The unit the OP referred to runs at 30-36V @ 100W it's unlikely to burn anything down but it may to too bright for the poor blind fishies.AndrewS wrote:If you seriously need to deal with such high-power electronics, then you're probably best off seeking the advice of a professional electrician, rather than trying to cobble together parts you've managed to scrounge off eBay.
Don't come crying when it all overheats and your house burns down...
multiplied by 8.mahjongg wrote:100W of energy is plenty to start a fire! And if you think "but that 100W is all converted to light", then think again, LED's are far more energy efficient than heating up a wire till it glows white hot, but white LED's are still converting 70% heat, and just 30% to light at best!
meaning you have 70 Watt of energy turned into nothing but heat!
http://en.wikipedia.org/wiki/Thermal_ma ... power_LEDs
Also 100W at say 33Volt still means you are funneling 3 Amperes through the wiring, use too thin wire, and see it starting to smoke!
I guess the 10W LEDs won't need any cooling - just thermally bond (i.e. glue) them under a metal lid on the tank and that might take care of heatsinking. Actually I would suggest you ask the suppliers - they do say email them with questions! What mechanical mounting and heatsinking arrangements do they recommend, for example.exzile wrote:Control each LED via the Raspi if possible. Control temperature of the LED's by using a temp sensor and switching a fan on and off when needed to cool.
You do realise how much brighter 100W of LED lighting is than 100W of old-fashioned incandescent bulb lighting is, right?exzile wrote:So I will start off with 10- 10watt LED's to produce 100W output.
Not my area of expertise, but I'm sure google might be able to turn up a few hintsAny references to a schematics or how I can do such a thing?
So you are building a hydroponics system, not a fish tank for a whaleexzile wrote:Not for fish, for plants. I really thought that was irrelevant lol, but you guys are worried about the fish.
It is to product a light for plants! I was hoping for some help on how to build such a unit.
With that much high powered lighting it's probably a hash farm.rpdom wrote:So you are building a hydroponics system, not a fish tank for a whale
That thought had crossed my mind...DougieLawson wrote:With that much high powered lighting it's probably a hash farm.rpdom wrote:So you are building a hydroponics system, not a fish tank for a whale