The cxm22 has my attention. what about heat sinks? what about the question from another member above about being able to use constant current drivers and serial wiring? Even after watching hours of Growmau5 you tube I can't get my head around these COB fixtures and I want to be sure I choose WISELY
as for pin fins, 120mm up to 50W, 133mm up to 75W
there are slight advantages and disadvantages to both series and parallel wiring. any cob can use either you just need to select the proper driver
depending how hard you want to run them, id reccomend 40-45W of cobs per square foot to match 66W of HPS
Ah thanks. That chart shows them rather equal over the whole range though. Crossover is around 45W?
One will yield about a pound, the other about 16 ounces.
These appear to be similar to other cree and epileds boards that are rated from 10-100w. I think it is a nice idea to have some good available colors like Far red, Deep Red on two channels, IR and Royal Blue on two channels, etc. Small footprint can be used as ancillary lighting for additional effects. Must be nice to have the ability to flow diodes.will the real cobcrete standup
30 XP version or 60 up XQ version, 60 up Deep red XQE should be an arse kicker, standard 28mm Citi footprint
Cheers
Mark
Try not to rip it off and then demand respect for your open source, k.These appear to be similar to other cree and epileds boards that are rated from 10-100w. I think it is a nice idea to have some good available colors like Far red, Deep Red on two channels, IR and Royal Blue on two channels, etc. Small footprint can be used as ancillary lighting for additional effects. Must be nice to have the ability to flow diodes.
This deep red version is approx 36V at 700ma, will depend on what led type and mix
can you make a chip like that swapping a third of the deep reds with a range of UVAs and actinic blues (365, 390, 410nm 420nm etc) ?
yes, actually got request last night to build 4 just 390nm, what ratio of what do you want?
there are more players now in 365nm but still an expensive chip, would make one of these probably >$300, 380nm may be a bit more reasonable, but right now 390nm is the boundary for relatively low cost vs eff/radiant flux
