EB Parts for 2.5x2.5 & 4x4 needed

Disco Biscuit

Disco Biscuit

Member
Hi guys,

Looking at building 2 rigs.

one will be for a 2.5ft x 2.5ft

Bridgelux EB 560mm

But how many do i need for maximum coverage?
Which controller would i need? (Wanting an A to be able to control, rather than a B to add potentiomoter(sp?) )


And also want to cover a 4 x 4ft area so probably looking at the Bridgelux EB 1120, but again, how many to cover the area? What would be minimum and what would be perfect coverage?
Also which controller in terms of A.



So info needed is....

a) Which strips? as there seems to be variations of the same strip like A3 or C3 etc

b) best to get 3000k or combination of 3000k & 3500k?

c)which controller would be suitable for each rig?

d) how many strips for each rig would be maximum as opposed to sufficient?

I understand this might not be a '1 answer fits all' scenario but any pointers would be helpful.
 
1

1212ham

Well-Known Member
Datasheets are your friend. http://www.bridgelux.com/sites/default/files/resource_media/DS130 EB Series Datasheet Rev A_0.pdf

http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/#more-2416

EB Gen-2 is what you want. 35 watts per square foot is common and a 2.5 x 2.5 is 6.25, so 219 whats. A 185 or 240 watt driver would be good, you can always dim down.

The nominal power of the 280mm strips is 13.6 watts, so divide the 219 watt target by 13.6=16 strips.

A) 22"/280mm strips at Digikey. Just pick the color temperature and length you want.
https://www.digikey.com/products/en/optoelectronics/led-lighting-cobs-engines-modules/111?k=&pkeyword=&pv46=37435&FV=fffc03d0,ffe0006f,ffeced5a&quantity=0&ColumnSort=0&page=1&pageSize=25

B) It's a matter of opinion, makes little difference. I used 3500k.

C) I use an HLG-240-42B, with strips series connected in pairs. It makes for simpler/less wiring.

D) It depends on the driver type. Assuming parallel wiring, more strips gives better spread and efficiency. I suggest running them near nominal power/current, so 13.5 watts /strip for the 22"/560mm and 27w for the 44"/1150, max power is double that. Just divide target power of the light buy the power of the individual strip.
 
Last edited:
nfhiggs

nfhiggs

Well-Known Member
Disco Biscuit said:
a) Which strips? as there seems to be variations of the same strip like A3 or C3 etc

b) best to get 3000k or combination of 3000k & 3500k?

c)which controller would be suitable for each rig?

d) how many strips for each rig would be maximum as opposed to sufficient?

I understand this might not be a '1 answer fits all' scenario but any pointers would be helpful.
Click to expand...
A - Indicates the CCT bin - basically how much they may deviate from the target CCT.
B - Get whatever is available, the difference is negligible.
C - Controller? Do you mean driver? For the 2.5x2.5 I'd suggest an HLG-150H-42A
D - 10 is the minimum I would use - you could toss as many as 18-20 in there (or even more), but the cost becomes excessive with so many, IMO.
 
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