Hi, i am looking to make a custom grow lamp for my chilies. In all honesty i don't have a great deal of knowledge about electronics, but i want to power it off of a spare 12 volt power supply unit from an old pc of mine.
I'd like to use many high brightness led's, possibly ones like this http://uk.rs-online.com/web/p/products/0414597/
I think the best way to do it would be to use an array of 9 strips, each with 3 led's on, and a 2.2ohm resistor with a power rating above 3 watts.
My question is, how would i work out how many led's the power supply unit would be able to power? It's 450 watt if that helps at all.
Any help at all is appreciated, thanks a lot
I'd like to use many high brightness led's, possibly ones like this http://uk.rs-online.com/web/p/products/0414597/
I think the best way to do it would be to use an array of 9 strips, each with 3 led's on, and a 2.2ohm resistor with a power rating above 3 watts.
My question is, how would i work out how many led's the power supply unit would be able to power? It's 450 watt if that helps at all.
Any help at all is appreciated, thanks a lot