New light build with questions

Discuss COBs or any other types of LEDs that don’t fit the other categories (Cree, Citizen, Migro, etc.).
Post Reply
Cavemanej255
LED-Curious
LED-Curious
Reactions:
Posts: 3
Joined: Thu Jun 11, 2020 2:23 am

Hello all

Finally decided to buy a tent and build a light for some indoor growing. These questions are regarding the light. I built a 3 cob led light with 1 cob (middle) being a chilled v3 puck and the 2 outside cobs being vero 29 se ‘d’s 3000k 80cri. All on 140mm heat sinks. This was wired in series on a 1.75mA driver with dimming capabilities. This will be used to light a 2x2.5 tent running various autoflower strains. So my questions are:
Any overall opinions on the light from more experienced growers/light builders regarding combination of components? Was this spec’d out properly or would anyone have done anything different? The light is dimmable so im able to run at lower intensities considering the tent size and light wattage but wanted some overhead room to expand if things go properly.
My next question. Regarding spectrum, would adding some royal blue help during veg? Curious about opinions on this.

I built the light this past weekend and have been running it for hours at a time while at work to test heat production at heat sinks at various intensities. I keep forgetting the digital thermometer from work but the ‘hand test’ has me thinking anything above 75% or so will require some active cooling. The heat sinks remain fairly cool otherwise.

Anyway, thanks for the first post. Looking forward to sticking around

-cave
Cavemanej255
LED-Curious
LED-Curious
Reactions:
Posts: 3
Joined: Thu Jun 11, 2020 2:23 am

So after reading through my post in the morning, I noticed a few typos. Let me clarify:

-Vero’s used were ‘B’s BXRC-35E10K0-B-73-SE with a 50.7 forward voltage.

-3500k NOT 3000k

Middle light is v3 puck and 2 outside lights are the vero B’s.

Driven with a Meanwell HLG-320H-C1750B
Post Reply