Help with first time 301b strip build

Strip light questions and discussions go here (Samsung, Bridgelux, Photo Boost, Growcraft, etc.)
Post Reply
greeenstate
LED-Curious
LED-Curious
Reactions:
Posts: 6
Joined: Thu Apr 30, 2020 4:28 pm

I bought some strips / sinks / driver from eBay. Actually talked to the guy on the phone, helped walk me thru what I needed. Overall good experience.

Here's the lowdown:
(4) 4x Sun Board 96 LED LM301b 6500k
(1) HLG 150H-48A Driver

I built a neat little frame (or so I thought) to accommodate a 2x4 shelf setup.
IMG_3095.JPG
IMG_3093.JPG
Was using this video as a bit of a guide on how to wire it up.

Then checked out the 2x2 build with 4 strips on the strips build page here. Seemed this was the way to go:
LT-F284B-2X2.png
I can wire 2 of the boards in series and it works fine:
IMG_3178.JPG
When I wire all 4 in series, I get nothing:
IMG_3177.JPG
All 4 work in parallel, but it's a bit messier wiring. Am I missing something? Is there some limitation with the driver that I'm unaware of? This is the driver:
IMG_3176.JPG
This is what I'm hoping to do:
IMG_3180.JPG
User avatar
TEKNIK
LED Wizard
LED Wizard
Reactions:
Posts: 1435
Joined: Fri May 03, 2019 7:53 pm

You need to run your driver in parallel
This means all + together and all - together
Find me on Instagram led_teknik
greeenstate
LED-Curious
LED-Curious
Reactions:
Posts: 6
Joined: Thu Apr 30, 2020 4:28 pm

Yeah that's what I thought.

Can you explain why the driver needs to be run in parallel?

Why it works in series with only 2 boards and not 4?

Lastly what driver could run this setup in series?

Sorry, total newb.

Thanks!
User avatar
TEKNIK
LED Wizard
LED Wizard
Reactions:
Posts: 1435
Joined: Fri May 03, 2019 7:53 pm

Not sure on the driver you need to run in series, voltage would need to be close to 200 volts

I dont know the forward voltage of the strips you have but I'm presuming they are 48V
If you dont have enough voltage your strips won't light up

Parallel is easier and safer in most cases
Find me on Instagram led_teknik
greeenstate
LED-Curious
LED-Curious
Reactions:
Posts: 6
Joined: Thu Apr 30, 2020 4:28 pm

Would there be a preference on either #1 or #2 here?
IMG_0187.jpg
IMG_0188.jpg
User avatar
LEDG
Site Admin
Reactions:
Posts: 1599
Joined: Sun Jun 04, 2017 8:15 pm

If you have a 48V driver and these strips are 24V each then #1 is what you'd want.
Want to Support the Site?

Use this Amazon referral link and any purchase you make within 24 hrs will earn LEDgardener a commission at no cost to you!
greeenstate
LED-Curious
LED-Curious
Reactions:
Posts: 6
Joined: Thu Apr 30, 2020 4:28 pm

Spoke with the seller. He recommended this:

"use series and parallel, like this diagram shows. If it is easier, the jumpers can go on the same end of the board as the hookups from the driver."
15048a1.png
User avatar
LEDG
Site Admin
Reactions:
Posts: 1599
Joined: Sun Jun 04, 2017 8:15 pm

Yup. That’s the same as what you’ve drawn in #1. Series-parallel.
Want to Support the Site?

Use this Amazon referral link and any purchase you make within 24 hrs will earn LEDgardener a commission at no cost to you!
Post Reply