Verification on my EB gen2 wiring

Strip light questions and discussions go here (Samsung, Bridgelux, Photo Boost, Growcraft, etc.)
Post Reply
solventlesstech
LED-Curious
LED-Curious
Reactions:
Posts: 5
Joined: Sun Nov 24, 2019 3:22 pm

Hey everyone, I'm pretty sure I got everything right I just wanna come here and double check my work. I'm building an eb gen2 strip light for my 2x4 tent.
10x1120mm (almost 4ft) strips (Vf 39, @700ma)
I'm going to bunch them into 2 groups of 5 strips wired in series and then both groups in parallel. Driven by a hlg-320h-c1400.
So each bank will get 700ma, the forward voltage will be about 195v on each group. With a total of 273w. As far as I can see I'm within all the ranges, and not exceeding 200v on the wiring.
Anyone see something I dont? Thanks in advance!
User avatar
HomerPepsi
LED Enthusiast
LED Enthusiast
Reactions:
Posts: 81
Joined: Mon Nov 26, 2018 9:39 am

Hi,

Please consider a different driver. The eb gen 2 strips are rated at 60v working voltage maximum in their internal wiring NOT 300v!!

I used to drive a 2ft 14 strip (7s2p) gen 2 build with an HLG-185-C1400B until being pointed to the fine print in the datasheet (pg 4, - note 3). The 2 footers, you can wire in series up to a max of 3. The 4 footers don't seem to be meant for series wiring. You would have to run them as individually paralleled strips.

For 10 4ft strips running at 700ma and 39v's, I would buy a HLG-320H-36A. This driver would allow you to run 10 strips @ 890ma; 11 strips @ 809ma; 12 strips @ 741ma; or 13 strips @ 684ma

HLG-240H-36A would run 10 strips @ 670ma; 9 strips @ 744ma.

Good luck with your build!
solventlesstech
LED-Curious
LED-Curious
Reactions:
Posts: 5
Joined: Sun Nov 24, 2019 3:22 pm

Thanks for the reply man! Exactly what I was looking for.
0 to 220
LED Lover
LED Lover
Reactions:
Posts: 194
Joined: Sat Jun 01, 2019 9:42 am

HomerPepsi wrote:
Mon Nov 25, 2019 7:11 pm
Hi,

Please consider a different driver. The eb gen 2 strips are rated at 60v working voltage maximum in their internal wiring NOT 300v!!

I used to drive a 2ft 14 strip (7s2p) gen 2 build with an HLG-185-C1400B until being pointed to the fine print in the datasheet (pg 4, - note 3). The 2 footers, you can wire in series up to a max of 3. The 4 footers don't seem to be meant for series wiring. You would have to run them as individually paralleled strips.

For 10 4ft strips running at 700ma and 39v's, I would buy a HLG-320H-36A. This driver would allow you to run 10 strips @ 890ma; 11 strips @ 809ma; 12 strips @ 741ma; or 13 strips @ 684ma

HLG-240H-36A would run 10 strips @ 670ma; 9 strips @ 744ma.

Good luck with your build!
That's very important information!
solventlesstech
LED-Curious
LED-Curious
Reactions:
Posts: 5
Joined: Sun Nov 24, 2019 3:22 pm

0 to 220 wrote:
Wed Nov 27, 2019 7:16 pm
HomerPepsi wrote:
Mon Nov 25, 2019 7:11 pm
Hi,

Please consider a different driver. The eb gen 2 strips are rated at 60v working voltage maximum in their internal wiring NOT 300v!!

I used to drive a 2ft 14 strip (7s2p) gen 2 build with an HLG-185-C1400B until being pointed to the fine print in the datasheet (pg 4, - note 3). The 2 footers, you can wire in series up to a max of 3. The 4 footers don't seem to be meant for series wiring. You would have to run them as individually paralleled strips.

For 10 4ft strips running at 700ma and 39v's, I would buy a HLG-320H-36A. This driver would allow you to run 10 strips @ 890ma; 11 strips @ 809ma; 12 strips @ 741ma; or 13 strips @ 684ma

HLG-240H-36A would run 10 strips @ 670ma; 9 strips @ 744ma.

Good luck with your build!
That's very important information!
Definitely useful, but from the research I've done there's a bunch of people who have wired these strips in series. I've talked to digikey and they cant really explain it, also emailed bridgelux with no reply yet. Is everyone else just doing it wrong and got luckey?
solventlesstech
LED-Curious
LED-Curious
Reactions:
Posts: 5
Joined: Sun Nov 24, 2019 3:22 pm

After doing some more research and talking to some other people who have done builds in series/ led enthusiasts. I feel this answer explains the note pretty well.

Consider that the EB2 are longer on the market and many builds had been done above 60V with them.
Everything below 60V is considered to be a safe voltage for everyone and need no further protection.
If you sell bare board electronic components , which these strips are and mark them with CE/FCC you need to state some like this.

I didnt found anything regardings this "problem" in a Samsung F-strip datasheet, while i also didnt found any note about CE or FCC,, just lead free (ROHS).
https://cdn.samsung.com/led/file/resour ... ev.1.1.pdf

All these boards, strips, aluminium or fr4 share the same problem and fr4 should be the absolute safest to use, no conductive at all (practically it wont matter).

If you feel uncomfortable, i would start thinking of how to insulate the open points further, maybe some clear nail paint can give you some confidence.
Consider 2 more things, you need to touch + and - of the menawell drivers out to get shocked and consder what ham1212 said, "voltage from which point to which point?"

I'm still waiting to hear from bridgelux.
User avatar
HomerPepsi
LED Enthusiast
LED Enthusiast
Reactions:
Posts: 81
Joined: Mon Nov 26, 2018 9:39 am

I wondered if it was supposed to be 600v... And was a typo. I've never been electrocuted from my setups, but once I found out, didn't want to chance it. (ALTHOUGH: from my vague understanding of electricity, it is the amps that'll kill you).

Still...

I started to wonder this because looking at the vesta strips, they are tested up to 1240v.
Post Reply