# Let's talk DIY lights **URL:** \ **Category:** Lighting\ **Created:** [July 13, 2017, 9:22pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186 "2017-07-13T21:22:36Z")\ **Posts on this page:** 20\ **Page:** 301
**Author:** ![fano\_man](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/fano_man/32/258316_2.png) [@fano\_man](https://ilgmforum.com/u/fano_man)\ **Post date:** [August 11, 2019, 2:39am UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6025 "2019-08-11T02:39:48Z")
And do you know any one that is running em on here? ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 11, 2019, 4:17am UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6026 "2019-08-11T04:17:05Z")
1700 umols/s per fixture, and space is 6.62 m². Plug a fixture in until you reach a desired light density. There was a guy running journal with smaller fluence light, 2p maybe? But I haven’t seen him around in a while. ---
**Author:** ![RandomlyRan](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/randomlyran/32/261399_2.png) [@RandomlyRan](https://ilgmforum.com/u/RandomlyRan)\ **Post date:** [August 11, 2019, 4:43am UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6027 "2019-08-11T04:43:29Z")
Mind=Blown I can just link this to ppl instead of tagging @dbrn32 ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 11, 2019, 4:46am UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6028 "2019-08-11T04:46:11Z")
Right here > [@ILGM GSCE Fluence Spydr 2p grow](https://ilgmforum.com/t/ilgm-gsce-fluence-spydr-2p-grow/24096): > > [image|666x500](https://ilgmforum.com/404) Hey guys. About a week from taproots. Under a 4 bar T5 in Super Roots pots. Mixed promix BX and 30% happy frog. I wanted 707 and sunshine 4, but it’s what my local had. I added perlite and vermiculite. Transplanted to the 1.5 gallons. Will keep those till I move in the Fluence room. Then 20 gals forever homes. Going to go AN full line. Co2. Scrogging two 8 week monsters into a super dense 4X4 canopy at a time cause of local legal limit. Control all temp and… ---
**Author:** ![ruok1116](https://avatars.discourse-cdn.com/v4/letter/r/a87d85/32.png) [@ruok1116](https://ilgmforum.com/u/ruok1116)\ **Post date:** [August 13, 2019, 2:48pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6029 "2019-08-13T14:48:49Z")
I have a 4 x 4 grow room right now I have two fixtures that has four bulbs each they are T5 HO bulbs is this enough lighting or should I get another one ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 13, 2019, 4:08pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6030 "2019-08-13T16:08:52Z")
I posted in your other topic. You could probably veg ok with with the two t5 fixtures, but you’ll want more light to flower a 4x4. ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 15, 2019, 4:26am UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6032 "2019-08-15T04:26:01Z")
From growerslights? I have heard of long lead times due to parts being out of stock. But I don’t remember hearing anything like that. You should get shipping confirmation with tracking number, I would follow that. ---
**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\ **Post date:** [August 16, 2019, 1:50pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6034 "2019-08-16T13:50:38Z")
@Banksmoney6485 this would be the best thread to post your lighting questions to dbrn32. Describe the space you want to light, color spectrum, (veg or flower or both) 2700K-3500K will work from seed to harvest. You said 2-300 watts? There are lots of strip light options. ---
**Author:** ![Newgrwr2018](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Newgrwr2018](https://ilgmforum.com/u/Newgrwr2018)\ **Post date:** [August 16, 2019, 9:23pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6035 "2019-08-16T21:23:35Z")
Another shout out to dbrn32. I’m 2weeks out from what looks like amazingness. My nute system gets a lot of credit, but the system requires a great environment and quality light. QB grow hard hard nugs. @500watts for the room currently. ![image](https://global.discourse-cdn.com/growingmarijuana/original/3X/5/4/544babbe37cef2ce91499e385befa1af0f3155f3.jpeg) ![image](https://global.discourse-cdn.com/growingmarijuana/original/3X/6/f/6f833e89adf9e64f39317abb9f488fd08eb2957c.jpeg) ![image](https://global.discourse-cdn.com/growingmarijuana/original/3X/a/4/a4dea6c353f7581a47737b6714dd9c9174f07440.jpeg) ---
**Author:** ![Newgrwr2018](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Newgrwr2018](https://ilgmforum.com/u/Newgrwr2018)\ **Post date:** [August 16, 2019, 9:42pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6036 "2019-08-16T21:42:49Z")
Number 1 tip for noobs (if you don’t need heat) move the drivers out of the tent/room. If the tent Is in a bedroom and that heats up that room too much move them into another room if possible. Environment 1st. Otherwise almost every deficiencies you find and fight may be temp/humidity. I’m telling you right now With QB or any Of these intense lights Cal Mg will be your deficiency. Up it From day one and you’ll be so happy. ---
**Author:** ![LoCoRock](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/locorock/32/388502_2.png) [@LoCoRock](https://ilgmforum.com/u/LoCoRock)\ **Post date:** [August 16, 2019, 10:39pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6037 "2019-08-16T22:39:13Z")
Very very nice @Newgrwr2018… that gets a big Quagmire - giggity giggity - oh yeahhh !!! ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 16, 2019, 10:44pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6038 "2019-08-16T22:44:57Z")
Looks great dude, nice work! ---
**Author:** ![zparkie2](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/zparkie2/32/244407_2.png) [@zparkie2](https://ilgmforum.com/u/zparkie2)\ **Post date:** [August 16, 2019, 11:08pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6039 "2019-08-16T23:08:00Z")
At what distance do you have to worry about voltage drop on the DC side of the driver? @dbrn32. Just wondering if that comes into play. thx ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 16, 2019, 11:31pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6040 "2019-08-16T23:31:39Z")
Depends on wire size. You can search for voltage drop calculator in your browser, some easier to use than others. ---
**Author:** ![dunnitagain](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dunnitagain/32/124075_2.png) [@dunnitagain](https://ilgmforum.com/u/dunnitagain)\ **Post date:** [August 20, 2019, 3:29pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6041 "2019-08-20T15:29:04Z")
It’s been a year since you helped me with my build @dbrn32 [https://ilgmforum.com/t/lets-talk-diy-lights/13186/3718?u=dunnitagain](https://ilgmforum.com/t/lets-talk-diy-lights/13186/3718) I have three grows under this setup and I am greatly satisfied with the outcomes, a thousand thanks is not enough. You may not remember but I had another setup I was putting together for my seedling and clones space. To recap, I had two extra QB120 (4000k) boards that I connected to a HLG-60H-24 driver to put in that space. I’ve rearranged things and moved this configuration into a separate container. My question is, since the HLG driver is non-dimming, is it possible to place a 100k pot inline with the output (+) line to create a dimming function? Or should I purchase another driver capable of dimming (i.e. 24B)? ---
**Author:** ![Myfriendis410](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/myfriendis410/32/556067_2.png) [@Myfriendis410](https://ilgmforum.com/u/Myfriendis410)\ **Post date:** [August 20, 2019, 3:33pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6042 "2019-08-20T15:33:19Z")
Driver should have a little rubber plug which removed accesses a phillips head screw: potentiometer for dimming. I use mine along with a “kill a watt” to set the demand. ---
**Author:** ![dunnitagain](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dunnitagain/32/124075_2.png) [@dunnitagain](https://ilgmforum.com/u/dunnitagain)\ **Post date:** [August 20, 2019, 3:51pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6043 "2019-08-20T15:51:35Z")
Thanks for the response and yes some driver do have that type of dimming function. Those are designated with an “A” at the end of their model (i.e. HLG-60H-24 **A** ). Mine however is blank and does not include that feature. They also make one that is designated “B”, which has separate leads to connect a pot. The HLG-60H-24 only two power output leads with no dimming function. ---
**Author:** ![Myfriendis410](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/myfriendis410/32/556067_2.png) [@Myfriendis410](https://ilgmforum.com/u/Myfriendis410)\ **Post date:** [August 20, 2019, 3:53pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6044 "2019-08-20T15:53:00Z")
The way the driver dims is not to reduce dc voltage but to control the duration of the output. I don’t think a pot on the output will work, unfortunately. ---
**Author:** ![dunnitagain](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dunnitagain/32/124075_2.png) [@dunnitagain](https://ilgmforum.com/u/dunnitagain)\ **Post date:** [August 20, 2019, 3:55pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6045 "2019-08-20T15:55:54Z")
I kind of figured that would be the answer, was thinking I might get lucky and be possible. Looks like I’m going shopping! Thanks for your response. ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [August 20, 2019, 8:51pm UTC](https://ilgmforum.com/t/lets-talk-diy-lights/13186/6046 "2019-08-20T20:51:58Z")
He’s got you covered. The dimming drivers manipulate current not voltage. The problem with eating up some of the voltage like with a pot is that it will cause leds to blink and then just not turn on at all if much lower than needed. Super stoked to hear you are happy with the lights though. I was thinking if you’re running moth boards on that driver they’re only running at about 1 amp per board. That’s going to land you 25-30 watts, or about half power from the way we would typically power a 120 board. Do you really need to run less than that? If you do, I would probably just get a driver to power them up to around 2.1 amps or so. Then use b dimming driver. [Previous page](https://ilgmforum.com/t/lets-talk-diy-lights/13186.md?page=300) [Next page](https://ilgmforum.com/t/lets-talk-diy-lights/13186.md?page=302)