stardustsailor
Well-Known Member
Herausesseses.es.
Me ?
Where ? When ?
...Don't remember shi......eh .....it ......
Me ?
Where ? When ?
...Don't remember shi......eh .....it ......
for the center one 120° will be OK.Was thinking 120* angles for a good majority of things? If youve seen my set up, I will be angling my two panels inward, my plan was to put one strip in the center of the two, and the other two at the bottom end (edge of cabinet) of the lights, to spread the blue and red out, respectively.
how many watts are you thinking off for this 6x6/12 heatsinks?I started rolling over the idea of making one of those strip lights for the center, then making 2 6x6" (~) DIY panels, or possibly 6x12" to take advantage of all available space.
piece of cake... if you are willing to pay the price..But i love the idea of having separate drivers/channels to control which combinations and sets of modules you want to supplement...
subtleties...we are not doing high-end here,I am truly busting my ass trying to grasp the whole... Emitter-->Epoxy-->PCB-->HS
But 2.5 million questions go off in my head... like whats the significant differences in Aluminum alloy PCB's, Coppoer, or FR4 PCBs? what do the different ratings mean? (1065, 5062......)
fin height about 1,6" for a passive one.Thinking a ballpark of 30 drawn watts for a 6x6"
10x10mm stars, this is single PCBs, right?
without dimmig 500mA for all.these are all going to be driven at 500mA? is there any way to see the shift (or is there any shift?)?
my idea here was make it simple. more switches and drivers > more wireing between the leds, more cables from the driver to the light.would you suggest a different approach to the WW/B and WW/R switch idea? Should I go dimmable with the blues and always use them, just accordingly? are you talking about having the WW and R's on the same driver, then the blues separately? or WW and blues together and dimmable?
smaller, not by much, 6" maybejust a smaller heatsink?
in the first weeks you also can go with less power.but would like to be able to "revamp" the blues in the first couple weeks, and cut it back later.
an idea with 4 of them...I thought about just building three of these and putting one in the center... 7" wide is not that massive... but I dont want to speak to early as I dont have both A51 -90's in the cabinet right now..
There we go! Ive been doing a majority of my self education on heatsinks and thermal management so thank you for adding to the bank!!smaller, not by much, 6" maybe
and a bigger one run into this problem...
Spreading resistance
Rs in standard heatsinks is measured by introducing heat evenly over its entire mounting face. If the hot device is any smaller than the whole mounting face, heat has to move sideways before it can reach the dissipation area. This additional flow resistance is the spreading resistance.
I was actually debating this yesterday, I saved the images to my phone, was that diagram "to scale" with the HS? I just assumed I would measure them all evenly and spread the difference across the HS.. but then you get into possible angles and intensity that could change the whole ballgame...?here the leds are concentrate(more or less)in the center of the heatsink, good for the spectrum bad for heat.
as allways a compromise.
Remember also I can turn only half of each 51 panel on/off at a time.an idea with 4 of them...
no center one, each A51 gets two of them on the sides
in the first weeks the a51 are off, the other 4 panels
with the dimmer on the red channel,(all of them on one) will do the job. 140 to 200W is a lot in this phase.
or maybe only two? number of plants and aera is here the question.