Led strip Opinions pls
- Thread starter Gary77
- Start date
coreywebster
Well-Known Member
Get used to googling each potential driver and you will find the data sheet which shows all the info for the driver, like its max wattage, amperage, voltage range.
It all seems complicated to start with but you will soon get your head around it. If in doubt ask in the LED section.
I get confused myself.
eyderbuddy
Well-Known Member
The reason i recommended the LRS is because they are very very low cost. But if money isn't an issue, then i recommend you get an HLG driver.
Series and Parallel builds differ in the way you distribute your wiring, and will require a different driver depending on what you like.
On Parallel, all strips have the same voltage, and the current is divided among them all. So if you have 10 strips, they all get the same voltage, and the current gets divided, so if its 10 Amps, they all get 1 Amp.
On Series, the voltage gets divided, and the current is the same for all strips. So for a series build, you would need a constant voltage 200V driver (20+20+20+20+20+20+20+20+20+20), that outputs 1.5 Amps
Series and Parallel builds differ in the way you distribute your wiring, and will require a different driver depending on what you like.
On Parallel, all strips have the same voltage, and the current is divided among them all. So if you have 10 strips, they all get the same voltage, and the current gets divided, so if its 10 Amps, they all get 1 Amp.
On Series, the voltage gets divided, and the current is the same for all strips. So for a series build, you would need a constant voltage 200V driver (20+20+20+20+20+20+20+20+20+20), that outputs 1.5 Amps
Cost is an issue . The aim is to build a great quality light at the cheapest cost . Why are the lrs cheaper ?
At the moment im thinking
2 x driver HLG-240H-C1400B. £120
16 x led strips 1568 xlm301b. £230
16 x heatsinks £130
I think it will be around 400watts at 1400ma but could be adjusted to run softer ,
Total £480
Equavilant to the number of lm301b on 5.44444 quantum boards . Which i think would cost around £870. I need to check that . This is the first time ive looked at the costs
To have anodized heatsink would cost an extra 100, would it make much difference ?
Would the driver be able to be adjusted in current from 700ma up to 1400ma ?
At the moment im thinking
2 x driver HLG-240H-C1400B. £120
16 x led strips 1568 xlm301b. £230
16 x heatsinks £130
I think it will be around 400watts at 1400ma but could be adjusted to run softer ,
Total £480
Equavilant to the number of lm301b on 5.44444 quantum boards . Which i think would cost around £870. I need to check that . This is the first time ive looked at the costs
To have anodized heatsink would cost an extra 100, would it make much difference ?
Would the driver be able to be adjusted in current from 700ma up to 1400ma ?
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coreywebster
Well-Known Member
Gary I thought you were lighting up a 4x2 ft space? You can just buy this for £269.
https://www.diyleduk.co.uk/product-page/265w-quantum-board-v2-kit-dimmable
coreywebster
Well-Known Member
Or 4 of these and a HLG240-48a
https://www.diyleduk.co.uk/product-page/samsung-h-influx-lm301b-light-engine
Much cheaper than £480,
https://www.diyleduk.co.uk/product-page/samsung-h-influx-lm301b-light-engine
Much cheaper than £480,
coreywebster
Well-Known Member
Or you can buy those exact strips elsewhere that he uses, just in case you think im a salesman 
The higher voltage means less strips.
I think you could get a LRS 350-48 (£32) and power 6-8 H-influx strips to give you around 335w. Personally I don't think you need that many watts.
I used to use 260w kits over 2x4 space with good results. My flower tent was 8x4 and had 2x 260w kits one side and COBs on the other.
The higher voltage means less strips.
I think you could get a LRS 350-48 (£32) and power 6-8 H-influx strips to give you around 335w. Personally I don't think you need that many watts.
I used to use 260w kits over 2x4 space with good results. My flower tent was 8x4 and had 2x 260w kits one side and COBs on the other.
eyderbuddy
Well-Known Member
that's a very good suggestion
Those look good i'll do a proper comparison later . Each of those looks almost the same as 2 of the type i quoted .
4 of them would have as much lm301b's as 8 of the other strips . Works out around £240 . Maybe i only need have as much as id worked out for . I did start at 10 strips and ended up on 16 .
I will try and work out an expected ppfd . Ideally looking for between 700 and 1000
4 of them would have as much lm301b's as 8 of the other strips . Works out around £240 . Maybe i only need have as much as id worked out for . I did start at 10 strips and ended up on 16 .
I will try and work out an expected ppfd . Ideally looking for between 700 and 1000
The best light for comparison is probably the xl quantum board from diy led uk.its running 288 x 3 lm301b = 864 at £380
Around one of the pair of lights i quoted for . So £240.
It really depends on the quality of the lm301b on each of the boards. But how much difference can there be between bin codes.
Im going to look in to ppfd and par etc .see how many strips i actually need
Around one of the pair of lights i quoted for . So £240.
It really depends on the quality of the lm301b on each of the boards. But how much difference can there be between bin codes.
Im going to look in to ppfd and par etc .see how many strips i actually need
eyderbuddy
Well-Known Member
as far as i know, the 265W quantum board kit will surely deliver over 800 PPFD to your 2 x 4 space... It's pretty much the perfect fit.. too bad it's out of stock though...
maybe you could contact the seller?
maybe you could contact the seller?
The 1120mm long x 24mm wide Bridgelux EBs are ok at 30 watts, but they have about 4 x the surface area, so I'm guessing some heat sink will be needed. I think 25mm or wider aluminum angle would probably give enough cooling for 30 watts per strip. I'd like to see this build, something new!
Im definitely going to make my own. Partly because i like building things .but also i think theres a good saving to be made .
Does anyone know what current the quantum board is ran at to get 260watt from 576 x LM301b .
My calculations are assuming i'd get about 20watts per strip at 1050ma and 30 watts at 1500ma. At those rates id need to use 13 strips (1274 x lm301b) at 1050ma or 9 strips ( 882 x lm301b) at 1500ma .
I think im right in saying the strips could be ran at 2800ma and give around 50watts a strip
But from what i understand running them at less amps is better .better light spread as well
Does anyone know what current the quantum board is ran at to get 260watt from 576 x LM301b .
My calculations are assuming i'd get about 20watts per strip at 1050ma and 30 watts at 1500ma. At those rates id need to use 13 strips (1274 x lm301b) at 1050ma or 9 strips ( 882 x lm301b) at 1500ma .
I think im right in saying the strips could be ran at 2800ma and give around 50watts a strip
But from what i understand running them at less amps is better .better light spread as well
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eyderbuddy
Well-Known Member
You may be over-complicating things by taking each individual diode into account.
Think of the strips as a single light source. One that requires 20 volts to run... that simple.
And yes, you're correct, the lower you drive them (amps) the more efficient they are.
So if youre going the DIY route, then get:
Think of the strips as a single light source. One that requires 20 volts to run... that simple.
And yes, you're correct, the lower you drive them (amps) the more efficient they are.
So if youre going the DIY route, then get:
- 1x HLG-240H-C1050B Driver. (for this driver you'd be connecting them in series, the choice of version A or B is up to you. A comes with dimmers on the drivers, and B has the cables for you to add an external dimmer)
- 12 Strips
- heatsinks? Although i don't think they're necessary at 20W per strip
What builds have you used that driver on? I haven't heard anything good about it
From highest to lowest bin it's a big difference like 20%