DoctaQ
Non-member
ive been working on this led build for some time now i figured id share it with you guys. my plan is to create a height adjustable led fixture for a nano, 2.5 gal, yes, 5.5, pushing it probabally. i plan on using 4 blues and 2 whites which i imagine will give me about 20k, although i could just be imagining it.
the kicker though is that i will have a switch that will let me turn the whites to half power which would make the light even bluer, and i will have another switch powering the whites on and off completeley.
the unit will be heatsinked and fan cooled, run a little over 20w and equal over 70w of mh with none of the heat.
this build is not complete yet since i am still waiting on my blues. now for pics
what could possibly be sleeker and easier to raise and lower than a desk lamp?i plan to have no wires coming out of this other than at the base where the wire came out when it was a desk lamp anyways. hole in the back for the fan to vent. smile!
the driver behind all this, its a AMC based driver designed for flashlights, it has 4 chips(those little black rectangles) which give 350ma each, cree xr-e, the led i am using should not get the whole 1400ma this driver would give, so i modified(read:hacked up) the board to give two outputs of 700ma each which works out to about 2.5w each and about 160ish lumens(terrible measurement of light for reef i know). leds like any light are more effecient at lower power but from 350-700ma the power/output is pretty linear, its not until you reach past this that the output starts dropping off signifigantly
the whole bundle, lamp casing, with toggle switch inside, heatsink there next to it and power supply, i ended up cleaning up the wiring a bit, i know you guys love my green carpet its in the garage anyways.
im open to any ideas suggestions questions requests and propositions haha
i already have and plan on using 80 degree optics and putting this fixture about 15 or so inches from the bottom of the tank for good coverage based on par readings ive seen and bogus math.
the kicker though is that i will have a switch that will let me turn the whites to half power which would make the light even bluer, and i will have another switch powering the whites on and off completeley.
the unit will be heatsinked and fan cooled, run a little over 20w and equal over 70w of mh with none of the heat.
this build is not complete yet since i am still waiting on my blues. now for pics
what could possibly be sleeker and easier to raise and lower than a desk lamp?i plan to have no wires coming out of this other than at the base where the wire came out when it was a desk lamp anyways. hole in the back for the fan to vent. smile!
the driver behind all this, its a AMC based driver designed for flashlights, it has 4 chips(those little black rectangles) which give 350ma each, cree xr-e, the led i am using should not get the whole 1400ma this driver would give, so i modified(read:hacked up) the board to give two outputs of 700ma each which works out to about 2.5w each and about 160ish lumens(terrible measurement of light for reef i know). leds like any light are more effecient at lower power but from 350-700ma the power/output is pretty linear, its not until you reach past this that the output starts dropping off signifigantly
the whole bundle, lamp casing, with toggle switch inside, heatsink there next to it and power supply, i ended up cleaning up the wiring a bit, i know you guys love my green carpet its in the garage anyways.
im open to any ideas suggestions questions requests and propositions haha
i already have and plan on using 80 degree optics and putting this fixture about 15 or so inches from the bottom of the tank for good coverage based on par readings ive seen and bogus math.
