Search results

As for some more testing, I was able to run another test this afternoon for ~1 Hour and got the following: 5 x 4000k EB Strip 4000k running at 100% Voltage: 44.8V-44.9V on all 5 LDD-1000H Temperature: Directly under LED on bottomside of board ~60C (measured with infared thermometer): around 54C...

Just looking them up now, definitely more efficient (187lm/W vs. 158 lm/w) but close to double the cost ($27.58 vs. $14.95). http://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SI-B8T221B2HUS/1510-1578-ND/6149743 I settled on the EB series for bang/buck ratio for around ~$300-350...

I havn't seen an H-Series, but I did look into the Samsung 4-ft M-Series: http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_M-series_4ft_Rev.0.3.pdf At the time they were more expensive on Digikey, but looks like you can get the for about a dollar...

Hooked 5 of them up to a Coralux 5up PCB w/ 5xMeanwell LDD-1000h drivers. Powering this with a 480w 48V 10A PSU. This board requires a PWM controller in order to start due to having pulldown resisters. I have an Arduino Uno driving all 5 pins hooked up to potentiometer. Running @ 1000ma...

Parts came in over the last week, finally got a chance to wire them up tonight. Taking a look at them, they appear to be a single sided PCB. I am a little dissapointed they do not have any thermal vias or backside copper, but I will have to see how well they dissipate heat:

These are definitely 44" long, not sure where I got 1120mm = 40" :eyesmoke:. I ended up settling on a 48" x 30" tent

Well my order shipped today from Digikey, looks like they only have the 4000K+ in stock currently. http://www.digikey.com/product-search/en?FV=ffecd831 Still have not heard back from Bridgelux on a 3500k Spectrum Graph. Looks like these only got released at the end of October, which explains...

I think I am going to move forward with these EB series, but in the 40" length and go with larger 4' wide tent. I am looking at about 9 of the 40" modules putting me around ~407W @ 1000ma. To drive them I was looking to use a bunch of the Mean Well LDD-1000H mounted on some 5UP PCB's...

Added the 1212's, wasn't able to find any better numbers for CB3590s at a higher temp. The 1212 still look like they come out on top on these for the price. I have inquired about the 3500k spectrum chart, but have not heard back yet.

Sorry about that, I will clean it up a bit. Was just grabbing similar values off the datasheets to make a comparison. I also need to throw some citizen 1212's in there as well. Just looking for discussion on a small setup like a 3x3 or 4x4, of the benefits of a 1. Larger spread of lights 2...

Additionally, I was wondering would 4000k be the value to to use? They don't have a spectrum chart posted yet for the 3500k yet: and would it be worth boosting the deeper reds similar to the Cree reference design?

I also ran a quick comparison against a cxb3590 at similar lumen/watt and the come in about 33% more cost effective: * Slight edit, will add Citizen 1212's tomorrow

First off, thanks to everyone posting on here. Learned alot with the guides and other info you people have thrown up here. I am looking for the best bang/buck for a small 3x3 or 4x4 setup and was looking for some feedback. I was wondering how cheap/efficient I could make a board with...