I also been thinking about 6x 72v like 1825 or vero29 gen7 or cxb3590, higher cob price but would save on passive heatsink and 6x1212 + the canopy Will be less busy...I got a couple of months to think and do research
Lighting China led to 1212
- Thread starter Bungholio
- Start date
1825s are 52v I think. I dont know much about vero cobs. Could do the higher voltage cxb's tho...
I been researching on the best cob to use with my mars 2 300watt 3w x 100 180watt draw. My 4 drivers are 55v to 100v at 600ma which is close to yours.
I ran the numbers on citi 12xx 18xx and the Vero gen 7.
I looks like the vero 29 gen 7 bin C the 65v cob will get you the most light out of the driver at 39 watts and the best lm/W at 208.
clu058-3618 would be most lumens but vero 'claims' to be most efficient. That might not be gen6 citi data tho? That would help a little also.
Well few things happened over the course of the last weekend, So looks like i will have a full system with drivers and All...
I got and offer for
6xClu048 1818c4 +holder reflector
6xØ133x77 heatsink
2xHlg 185h-c1050b
Dimmer
At 400usd incl shipping
Similar setup with 6x3590 36v,holders reflector,heatsink and 2xHlg 185h c1400b
For 485usd incl shipping
Which setup would you choose?... I prefer keeping it at 6cobs, less busy canopy.
Could get vero29 gen7 36v setup at similar price 400, but dealer have No holder for this option.
Hmmm i am biased towards the 1818 for no particular reason
I got and offer for
6xClu048 1818c4 +holder reflector
6xØ133x77 heatsink
2xHlg 185h-c1050b
Dimmer
At 400usd incl shipping
Similar setup with 6x3590 36v,holders reflector,heatsink and 2xHlg 185h c1400b
For 485usd incl shipping
Which setup would you choose?... I prefer keeping it at 6cobs, less busy canopy.
Could get vero29 gen7 36v setup at similar price 400, but dealer have No holder for this option.
Hmmm i am biased towards the 1818 for no particular reason
Id go with the 1818s personally, if you can get HLG-185H-48 youll get a little more bang for your buck but need to wire parallel instead of series.U can squeeze 220w each out of that driver...
Something to consider when converting a blurple is the cost. The light is being upgraded for efficiency but your also keeping the stock cooling and 80+-% efficient drivers. I say upgrade them all but do it as cost effective as possible. I would run the 1212's for 36v or 1812's for 50v and not spend much more than that. If your interested in spending more money donate the panel to an eBay auction and start fresh.
That was exactely my though; i did not want to stick the new cobs in the blurble housing, but rather spread them out for better cover.
So basically needed everything but the drivers. 72v cobs er not as easy to find as 36 and 50v. So why All the hassle to save 80bucks in drivers...
I think it will be 6x 1818 with holders, reflectors, ø133x70mm heatsink (50-65w), and 1050ma drivers, and dimmer... Will target 35-40w pr cob in a 2x4 area with 2-3 autos
There int any savings on the driver. You need a lower amperage but higher voltage driver. Amps X volts = watt. Every driver in the same series all equal the same wattage whether it be a 700ma or 2100ma.
Same formula for the citizens. 50x1050 or 1.05v =52.5w per cob. To lower it to 35 watts you need a 700ma river. 6 cobs at 35w is a heck of a lot of light for a 2x4 space.
