DIY with Quantum Boards
- Thread starter robincnn
- Start date
Rocket Soul
Well-Known Member
The lower power A-type dimming drivers seems to have higher voltage regulation range than the higher powered Drivers with voltage reg. I also suggest looking further than the datasheet, look for the "report" in menawells database which is the real values (usually a bit higher than the ds).
I didn't even know such a thing existed. Thanks for telling me that.
I didn't set up a proper "test" or anything. But I did check the voltage while setting up two qb648s on one of these drivers. From (foggy) memory..
-With Io and Vo at max, it read something just over 56V. When I tested before and got 58.xV it was with no load. Running this setup with Vo at anything less than max does seem like it'd make sense to me now. Am I right in thinking that?
-With Vo at max, dimming with the Io pot. gives a much less than desired range of dimming (I knew this, but had forgotten how lame the dimming range is on type-a drivers).
-I tried two of these (2 x qb648, on 320h-54 per pair) and a killowatt meter measured 800watts. ...What!? Hahaha.
Why is this 'par map' not what I expected to see, maybe I'm not interpreting it right. Also, am I right in thinking that "H=0*" and "V=0*", and where the maps are labelled "H=0*" is referring to the fixture being level on both horizontal and vertical, that's all?
edit: It would've been nice to see Migro post his ppfd readings/map.
edit2: Oh, ledgardener did a bunch of maps (for the 650r at least) using his new, awesome test rig. Thanks ledgardener.
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pop22
Well-Known Member
I'm running a pair of HLG240H-C2100b @ 205 watts each from the wall. I'm more than pleased with the lights at this level! Hell I could be running CO2 or could even dim it a bit more and still get the same results, because even at 400 watts, I'm putting out more light than the plants can use at atmospheric CO2 levels. Just chopped a plant from that crowded tent and still the plant had little popcorn!
tent this morning everyone ready to chop!
This is just half the tent and the plant I chopped
tent this morning everyone ready to chop!
This is just half the tent and the plant I chopped
4 v1's is only 200 watts?
ilovereggae
Well-Known Member
running them in series at 1050ma. they only pull @ 48V at that current which is just @ 50W each. efficiency goes way up when u run them soft. I got them on sale for $29 each so I just bought a shit load of them and run them soft.
I am about to switch things up tho and run them in parallel 2 per 150W driver. so that fixture will be @ 300W instead.
Did you buy individual heatsinks for them or are you running them bare?
I grabbed three as well on the sale and also one double heatsink and one single for them. Wish I would've skipped the double heatsink or got all singles for more flexibility, but curious what others are running them at without sinks. I've only used two on the double heatsink but was running both off an xlg-100, so figure I should be fine without the sinks if I wanted to change the spread a bit.
ilovereggae
Well-Known Member
im too scared to run my boards or strips naked. i have them on a beefy heatsink that I sourced from a wholesale aluminum shop. tho i also wish i had just gotten individual ones for each board bc they are pretty heavy fixtures and like you said would allow for a lot more different layouts. also the time spent drilling and tapping holes I wish i would have just bought the Slates from HLG.
I'm not the most handy individual so that's why I just grabbed some sinks, but I feel the same about leaving them bare. Everything led I've used so far has been running them really soft so not so much worried about heat, but still scared structurally about just framing them bare.
I did grab a few wire cooling racks and used zip ties to attach some strips to. Havent wired it up yet, but was easy for my simple mind so far.
ilovereggae
Well-Known Member
tbh. if u are worried about it, the Hlg120 4 packs are $100 rn and with discount that makes it $90. those don't need heatsinks and can easily frame up with some 1/4 angle aluminum. i have way too many unused strips right now to justify buying them myself but recommend that setup a lot.
GrassBurner
Well-Known Member
qb120s will grow plenty of Willie Approved Grass 
I've got a set of 4 lighting a 2x4 area. On a 320 watt driver turned down just a hair, the boards are warm to the touch with no airflow. Any kind of airflow across the boards will keep them just above ambient temperature.
I've got a set of 4 lighting a 2x4 area. On a 320 watt driver turned down just a hair, the boards are warm to the touch with no airflow. Any kind of airflow across the boards will keep them just above ambient temperature.If you like to diy, and change things, single heat sinks are the way to go, definitely.
Edit: Ie: changing layouts, builds, etc.
Where in the heck did you get qb288 rspec v1 for 29 dollars?
ilovereggae
Well-Known Member
not rspec. these didn't come out til v2. but right before 2019 christmas or nye i think,, they put out a batch of the qb288 v1 lumiled 2835HE that were $29 each. and the 10% off coupon worked too. so I bought 14
if you go back far enough in this thread u will find it. have since given away 4 to a friend I'm helping learn to grow, but still have the other 10 working hard (or actually, soft lol)What a fuckin' deal.not rspec. these didn't come out til v2. but right before 2019 christmas or nye i think,, they put out a batch of the qb288 v1 lumiled 2835HE that were $29 each. and the 10% off coupon worked too. so I bought 14
