if you run them on hlg185-h1400a.3 on each .that heatsink could be run passive ..5.886 heatsink has a 40.31..so what ever your length is you times it by that ...so 30x40.31=1209.3......and with 3 cobs on 1400a is 66 watts heat so ..so have 66x17=1122...there for your heatsink number is higher then your heats watts so your good..this is how my outlook is on this so thats what i suggest run passive take the fan out of the mix less wiring and wire 3 cobs to each hlg185-h1400a..so will need 3 of them total..if anyone sees anything wrong chime in ...im a noob to diy but researched for hrs and hrs and have my girl saying I have issues bc I'm so interested and wanna learn..lol
Going commercial
- Thread starter Rahz
- Start date
ttystikk
Well-Known Member
Not so easy to search thousands of posts for information you don't know much about. I tried and it's only helpful if you already know what you're looking for.
hillbill
Well-Known Member
Really! Some of the old stickies contain info that has become so dated as to be misleading, time for fresh threads to be stickies. Products and companies mentioned don't exist now.
Staying in the same subject area is helpful. Sometimes a person has to work their way through Hatfield-McCoy feuds going on between us all just to get some info.
Staying in the same subject area is helpful. Sometimes a person has to work their way through Hatfield-McCoy feuds going on between us all just to get some info.
Rahz
Well-Known Member
Check the datasheets. Any of the HLG-1400s we've been talking about will run 3 3590s. Which one is best based on the idea of getting as close as possible to the drivers max voltage output?
Rahz
Well-Known Member
Your math is correct, but there's no reason to use a HLG-185 when you can do the same thing with a HLG-120.
no doubt, but at least you try to find the info, and then come up with reasonable questions. not like some yahoos that ask a question every few minutes.
you right ..good point ..all long as the math works helps me reinsure that I'm starting to understand ...
Airwalker16
Well-Known Member
But is running at only 53 watts gonna give me the most lumens? I feel like I ought try 1750, or 2100 since I'll use the "B" version with dimming.
on the 1400 y
under the 1400a.you will get 252 par watts which imo is good enough for a 3x3
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Rahz
Well-Known Member
Lumens per watt, lower current is better. Lumens per cob, higher current is better. It just depends on how much you want to spend. Any extra you spend up front will be saved over time. Over the long run you're better off using a lower current, but we're talking about cost over time and not "how much light". Figure out how many par watts you want, work out the cost analysis on a couple options that meet your requirements and then go with the most expensive option you can afford and feel good about. There's nothing wrong with running these cobs at 2.1 amps... 50% efficiency is pretty good. But when you figure in the electrical costs over 5 years the higher current doesn't actually save money. Figure it over 7 years and the lower current is saving money even though it costs more up front.
In a 3x3 you could run 4 cobs at 2.1 amps, 5 at 1.75 amps, 6 at 1.4 amps, 8 at 1.05 amps, all providing around 300 watts. In these examples the lower current options will provide more light at the same wattage, but you could also get similar output with less watts using a lower current option. For instance 5 at 1.4 amps will provide almost as much light as 4 at 2.1 and use 50 watts less.
In a 3x3 you could run 4 cobs at 2.1 amps, 5 at 1.75 amps, 6 at 1.4 amps, 8 at 1.05 amps, all providing around 300 watts. In these examples the lower current options will provide more light at the same wattage, but you could also get similar output with less watts using a lower current option. For instance 5 at 1.4 amps will provide almost as much light as 4 at 2.1 and use 50 watts less.
ttystikk
Well-Known Member
Eloquently put, and I might add that hitting a given PAR/sq ft value can be accomplished by altering the spacing between the COBs as easily as changing their drive current. Lots of ways to skin this cat, so I'd start by suggesting the above poster do some reading up, then determining what you want your end result to do and work back from there.
Or, just buy some of @Rahz's tasty goodness and skip ahead to the fun part!
superbak3d
Well-Known Member
Rahz
Well-Known Member
Yes, I'm just waiting on a shipment of COBs. They should be leaving the warehouse in the next day or so and hopefully I will be showing stock on some new lamps early next week.
ttystikk
Well-Known Member
Good to hear you're selling them as fast as you can build them!
Fastslappy
Well-Known Member
Buzi iz a goood thing
Rahz
Well-Known Member
Yea, it's only 600 and a few watts so whatever cord you use should be fine, just make the attempt to observe the cord's electrical rating. Even an 18 gauge extension cord can handle 10 amps for short distances (-50 feet).You can find the drivers AC stats in the datasheet and multiply the current x 3 for 3 drivers. The wagos can handle anything you can put on a 15 or 20 amp circuit.
perfect thanks i appreciate it
Fastslappy
Well-Known Member
I just got a bag of the 5's Wago's gonna look clean on a bar builds & reusable