Incredible4Mr2E
Well-Known Member
I’ll give that a try and see if making it 5 or 6 foot helps. Thank you
DiY LEDs - How to Power Them
- Thread starter SupraSPL
- Start date
mahiluana
Well-Known Member
Did you check the dimming function ?
Incredible4Mr2E
Well-Known Member
I ended up making the cord just over 5 ft. It powers 238 watts now. Good looking out and thank you for the help. Thank you everyone for the advice!12 foot cord??? You previously said "Six individual positives and 6 individual negatives connected into the driver leads."
This would be a good time for pictures.
And wire gauges and lengths.
I don't have a datasheet for those strips or know the exact voltage at 40 watts. With my strips half a volt less reduces power around 40%.
It's quite possible your driver doesn't have enough voltage for those strips. I'll check on a couple things tomorrow.
Is a dimmer connected?
Incredible4Mr2E
Well-Known Member
I did, it doesn’t have that rubber piece anywhere. I know what you’re talking about. It does have the the cable for a dimmer coming out of the driver. I will buy one eventually for it lol
Incredible4Mr2E
Well-Known Member
You know what’s weird? When I started the light up it started at like 220 watts and slowly went up to 238 watts after a minute.
jarvild
Well-Known Member
Do you have a dimming pot on the driver ?
Incredible4Mr2E
Well-Known Member
How are you pulling that much power?
No built in dimmer, but have a cord for one, not hooked up though.
jarvild
Well-Known Member
Isawthelight
Well-Known Member
Here's some data on the LED driver, DL-200W-V56A-MXG, that powers the 200 watt Unit Farm UFL3000 grow light. Done is the manufacturer and they claim 93.5% efficiency at 230VAC. LED current is adjustable from 2.6 Amps (123 Watts) to 5.6 Amps (200 Watts).
3 pictures of the UFL3000
3 pictures of the UFL3000
MidnightSun72
Well-Known Member
Where do you live the cheapest option would depend on what drivers you have access to. Maybe two meanwell 240W drivers would suit best. They are around $40-50 and you can probably find them a little cheaper on eBay or something.
You can run two strings in parallel with 8 strips in series in each string. This would give the strips at 770ma each (with156V forward voltage) and they will still run no problem with no heat sink. Total 32 strips. 16 on each driver.
rememberingnever
Active Member
Oh its been some years since I thought about building LED's at the time it was all about cree led's and royal blues from marine suppliers... how have things moved on? I keep seeing mention of samsung being the ones to be using these days? I only do small areas so smaller diodes with a larger coverage are certainly the best option. I have plenty of old meanwell drivers and a big PSU I bought for an old project which disintegrated but I'd love to start working with LED's in order to maximise use of space. I generally work with around 1*2ft with 3ft of head room with HPS and recently got into growing chilli's too. I know SupraSPL used to be the man at working out the efficiency of COB's etc and with some LED's now able to produce a reasonable spectrum I guess you don't have to go mad with the deep reds and blues in order to do well with them these days. At the advent I noticed it was mainly auto flowers being used but I still generally prefer photo periods for multiple reasons 
. Perhaps someone can be kind enough to fill me in!
. Perhaps someone can be kind enough to fill me in!
MidnightSun72
Well-Known Member
Samsung are just popular because the LM301b is a very efficient diode. But you can make many different strip options equally or more efficient than many fixtures produced with samsung diodes. It depends how much drive current you drive the LEDs with relative to their nominal current. I think bridgelux offer great efficacy and good price compared to Samsung but I am made lights with both and both work great.Oh its been some years since I thought about building LED's at the time it was all about cree led's and royal blues from marine suppliers... how have things moved on? I keep seeing mention of samsung being the ones to be using these days? I only do small areas so smaller diodes with a larger coverage are certainly the best option. I have plenty of old meanwell drivers and a big PSU I bought for an old project which disintegrated but I'd love to start working with LED's in order to maximise use of space. I generally work with around 1*2ft with 3ft of head room with HPS and recently got into growing chilli's too. I know SupraSPL used to be the man at working out the efficiency of COB's etc and with some LED's now able to produce a reasonable spectrum I guess you don't have to go mad with the deep reds and blues in order to do well with them these days. At the advent I noticed it was mainly auto flowers being used but I still generally prefer photo periods for multiple reasons
You can buy the raw materials from sites like digikey, arrow.com, future electronics and mouser. There's probably others but that's a good start.
GBAUTO
Well-Known Member
Just from an efficacy viewpoint, using both boards should produce more umoles than a single one when both systems are at the same power level.
SaHt420
Well-Known Member
Alright that’s enough convincing I’ll do both
zep_lover
Well-Known Member
I have a question for the experts here.
i have some meanwell hlg 185-c1400b drivers from my old 4 cob cxb 3590 lights that i am not using now. what would be the best flowering leds that can use these drivers? I prefer better spread than light intensity since i do vertical scrog. I have not stayed current with building lights and just repurposed my 4 cob cxb 3590 lights into 8 cob veg lights with hlg185-700 drivers.
i started using the samsung led strip lights in flower and love the spread.
I would like to repurpose the 185-c1400b drivers into some newer style lights using strips or quantum board style .
thanks for any helpful input!
i have some meanwell hlg 185-c1400b drivers from my old 4 cob cxb 3590 lights that i am not using now. what would be the best flowering leds that can use these drivers? I prefer better spread than light intensity since i do vertical scrog. I have not stayed current with building lights and just repurposed my 4 cob cxb 3590 lights into 8 cob veg lights with hlg185-700 drivers.
i started using the samsung led strip lights in flower and love the spread.
I would like to repurpose the 185-c1400b drivers into some newer style lights using strips or quantum board style .
thanks for any helpful input!
MedicinalMyA$$
Well-Known Member
How many drivers do you have, and what size area are you looking to cover?