smokeybeard
Well-Known Member
3.5 weeks in 12/12, 14 real days of flowering in my opinion. These ladies have only been under the boards their entire life.
DIY with Quantum Boards
- Thread starter robincnn
- Start date
Would lumen density provide any benefits? Maybe better penetration? I've wondered this about the cobs now cree released these http://www.businesswire.com/news/home/20171206005166/en/Cree-Launches-Industry’s-Extreme-Density-LED
Discreetdigrowman
Well-Known Member
Looking good beard, thats using your beard, crazy flowers for two weeks gonna bud hard
I just got my qb now they come out with something better lol
Haha not better just different
ChaosHunter
Well-Known Member
@robincnn @Stephenj37826 over a year later I'm still churning it out with my QB304 build. I have a friend who wants a light for his 2x2 space. Is the same QB304 and driver combo still the best option ? If not what is ? Also how available are the boards and heatsinks ? Back when I got mine it came with everything but the driver and frame work.
Stephenj37826
Well-Known Member
Yes and no. High luminous density is a good thing(optics). It's not worth a big sacrifice in efficacy though.
Domzy4
Member
Hi, I'm very new (my first post) and i was wondering if the HLG 260w quantum board (and more specifically the controller) could withstand the 220V in the european electric grid? If not, would it be ok If I get a AC converter from 220V to 120V (and would a 1000W converter be stable and good enough?)
Sorry if It's a stupid question - I just want to get in on this awesome Led action and have fallen deep down the rabbit hole.
Thanks!
Sorry if It's a stupid question - I just want to get in on this awesome Led action and have fallen deep down the rabbit hole.
Thanks!
ttystikk
Well-Known Member
Most drivers will handle Euro voltage just fine.
Domzy4
Member
so a Meanwell HLG-240H LED Driver can withstand the 220V? So theoreticaly all I would need is to have a wall plug adapter (or just cut the wires and put the wires in an european plug)?
ttystikk
Well-Known Member
Yes.
The driver doesn't come with a plug, you wire your own to it as part of the assembly process.
dannykay
Well-Known Member
Using 2 Meanwell drivers here in eu with no problems.
Domzy4
Member
Great! Thanks very useful information... I've preordered a 260w 2 quantum board DIY kit
Lets hope it comes within 2 months so I can use them when I switch to flower (replacing my old 250W HPS)
420Barista
Well-Known Member
be sure to tell them you need a EU plugGreat! Thanks very useful information... I've preordered a 260w 2 quantum board DIY kit
Ok so it just eliminates the need for optics? That would be sweet if they could get within 10% efficiency of the current diodes
smokeybeard
Well-Known Member
Get ready for the brightness. This light is closer to a 600w how when turned up.Great! Thanks very useful information... I've preordered a 260w 2 quantum board DIY kit
Domzy4
Member
Yes i expect it will be so... With my 2.7x 2.7 it will be a bit much. So i expect to dim it to about 80% max power... It depends on the heat
i just wonder when the stock will be available (two qb 304s, 260w)
Stephenj37826
Well-Known Member
No I mean optic selection /design is easier.
dannykay
Well-Known Member
Check Amazon for the qb288s, you can pre order, shipping starts at Dec 14th.