Guide me to the Light....

[grotbags]

Ok scratch that...

I need more important advice.

Can I split the lead from the 480w driver to make two 240w fixtures using the 2ft strips so they're about 50cm apart? Driver's 42V strips are 19V

Thanks

Btw sorry for these abrupt replies and not properly responding to the posts so far in the thread I'm just doing the last bits of planning for the space and final adjustments and then getting the orders in, in the time I've got after work... I got another order from future elec and my TME order came as well so it's all coming together.

I'll have more time to post tomorrow and over the weekend, and I'll try and get some pictures up of some unruly ladies and also what I've got so far.

The build's happening in the next few days...

yer you can do that, you would have to wire two stips in series for 38v and adjust the driver down a touch then a paralel cicuit feeding the two strips in series. just the same as wiring one big light. only downside is they wont be dimmable seperately if that bothers you, you could MAYBE use two meshteks one at the start of the parralel feed for each light to gain back independant dimming but im not sure on exactly how the meshteks work yet.

 

[Rocket Soul]

That'd be something else pulling 2gpw. Just getting the space to live up to it's potential would be more than worth it. That's why I'm getting LEDs in teh first place, I just think they fit the eviornment better, to the point where I think they could allow it to properly flourish. We'll see.

On that note, what would people consider running soft for the Bridgelux EBs? 2 & 4 ft
Just so I know how many strips to put in.

My 320w fixtures are/were going to be 60cm wide with 11 bars made up of 22 x 2ft strips. Total max wattage would be 15w per strip. That's just over an inch gap between each of them.

How far apart should the strips be to allow for air circulation and heat escape?
Any ideas on that?

Cheers

eb gen3s? 700mA is nominal but already quite soft, just over 0.1w per diode (samsungs diodes are usually nominal 0.2).

At 500mA youll start hitting very nice efficiency; that means around 16w per 4ft strip. I doubt you will be able to use the full 320 w ever, unless you try lighting more than 4x2s.

 

[DukeFluke]

Hey, sorry for not updating in a few days. Been really busy.

Ready to start building now and just need my final bits and pieces. Don't wanna start and then realise I need something else so let me just run this past you all and see if I've got everything I need.

Drivers and strips obviously
Aluminium
Thermal tape
18 AWG solid core wire 30m of each colour
HSS bits
cutters
wire strippers
Nylon washers

Now, I need my nuts and bolts to secure the strips to the frame and the frame together and just need to know which size I should go with, ie M3/M4 etc? and what length?

Gonna go and find my cam and get ready to roll..... at last

 

[grotbags]

Hey, sorry for not updating in a few days. Been really busy.

Ready to start building now and just need my final bits and pieces. Don't wanna start and then realise I need something else so let me just run this past you all and see if I've got everything I need.

Drivers and strips obviously
Aluminium
Thermal tape
18 AWG solid core wire 30m of each colour
HSS bits
cutters
wire strippers
Nylon washers

Now, I need my nuts and bolts to secure the strips to the frame and the frame together and just need to know which size I should go with, ie M3/M4 etc? and what length?

Gonna go and find my cam and get ready to roll..... at last

wago's?, - depends if you are soldering a loom or not, if not you defo need em but still might be handy even if building a loom.

dimmers?

eye bolts/hooks for the frame for hanging?

 

[DukeFluke]

wago's?, - depends if you are soldering a loom or not, if not you defo need em but still might be handy even if building a loom.

dimmers?

eye bolts/hooks for the frame for hanging?

Yep, wagos. Check. I'll grab a load of those.

Dimmers, good shout... any in particular?

Need to configure the hanging bits.... What'd be the most secure way to hang them do you think? Would a hole through the angle then ratchets through it be good?

Thanks man

 

[DukeFluke]

Oh and before I forget, Can I use the Bxeb Gen 2 & Gen 3 in tandem?

Same voltages and diode count etc

 

[Rocket Soul]

Oh and before I forget, Can I use the Bxeb Gen 2 & Gen 3 in tandem?

Same voltages and diode count etc

Id avoid that, are you sure they have t same voltage or just from datasheet?
Also get something like this:


It will save you hours. Or use a lighter to soften the plastic of the cables before you peel

 

[DukeFluke]

Thanks man

You mean a wire stripper?

I've got one of these wire stripper

And yes, from the datasheet they are the same. I was going to use 4 x 4ft strips to make a veg light with the 8 which will be left over from one side.

Not a good idea?

 

[Rocket Soul]

Not mixing them in parallel unless you have a way of assuring theyre the same voltage.
Youre wire stripper looks good, this one is f-ing awesome, has separate holes for all awgs pretty much, but as long as you haev for what you working with its fine. It should not be anymore than a couple of secs. If not youll be up all night.

 

[Airwalker16]

Would a hole through the angle then ratchets through it be good?

Will work just fine.
But a better option is a hole through the horizontal side of angle alum and with an eyelit bolt through it with locking nuts threaded in the threads up to both sides of the aluminum tightened up against it. Hang from the eyelit and it also acts as a foot for keeping your strips up off the ground if needed to be set down or it fell.

 

[DukeFluke]

Will work just fine.
But a better option is a hole through the horizontal side of angle alum and with an eyelit bolt through it with locking nuts threaded in the threads up to both sides of the aluminum tightened up against it. Hang from the eyelit and it also acts as a foot for keeping your strips up off the ground if needed to be set down or it fell.

Nice. That's what I'll do

 

[DukeFluke]

Not mixing them in parallel unless you have a way of assuring theyre the same voltage.
Youre wire stripper looks good, this one is f-ing awesome, has separate holes for all awgs pretty much, but as long as you haev for what you working with its fine. It should not be anymore than a couple of secs. If not youll be up all night.

Thought the datasheet would be enough. Might just run the 8 then.

Will a HLG-240H-42A be dimmable below 240W if the strips are 39V rated?

What size wire should I get to run to the light itself? Just a standard 3 core?

Cheers

 

[Rocket Soul]

Thought the datasheet would be enough. Might just run the 8 then.

Will a HLG-240H-42A be dimmable below 240W if the strips are 39V rated?

You can get a multimeter and check them? Iirc the gen3 was a bit under dataheet voltage in tests. Not sure, all i know is test it before mixing gens. Unless youre running groups off 1 geen3 and 1 gen2 in parallel, and then i series. This should be ok. Not familiar with american cabling, cantt say

 

[coreywebster]

Last I looked the data sheet has gen 3 slightly less fV than gen 2.

Gen 2 are 19.5v and 39v , gen 3 are 19.1v and 38.3v

The gen 2 will have the last letter been a B in the part number and the gen 3 is a C

Sometimes when you search for the part number or gen 3 you can be lead to gen 2 so keep an eye on that last letter.

 

[grotbags]

Thought the datasheet would be enough. Might just run the 8 then.

Will a HLG-240H-42A be dimmable below 240W if the strips are 39V rated?

What size wire should I get to run to the light itself? Just a standard 3 core?

Cheers

yer i was gona add 1.5mm 3 core flex for the drivers and plugs!.

also you might want to consider something like this to join the mains cables on the drivers -https://www.amazon.co.uk/All-Pond-Solutions-Waterproof-Submersible/dp/B072JZLVT6/ref=asc_df_B072JZLVT6/?tag=googshopuk-21&linkCode=df0&hvadid=256124228134&hvpos=&hvnetw=g&hvrand=8511369004995293187&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1006669&hvtargid=pla-427894899058&psc=1

as for dimmers the choice in the uk is limited, your probs gona end up with standard 100k pots. like - https://www.mouser.co.uk/ProductDetail/Bourns/PDB181-K420K-104A2?qs=HVbQlW5zcXXWK3Cx41Su6Q==&vip=1&gclid=EAIaIQobChMI6sLRocXU6QIViLbtCh179wDSEAQYAyABEgIyHPD_BwE

if you need absolute full power from your drivers you might want to get some additional 6 ohm resistors to wire to the pots as most of the 100kohm pots when checked fall a bit short like around 95kohm this would only give you 95% power from your drivers adding another 6kohm resistor makes sure you get the full 100kohm.

you probs gona want a little box to house the dimmer and a nob for the top.

 

[Airwalker16]

yer i was gona add 1.5mm 3 core flex for the drivers and plugs!.

also you might want to consider something like this to join the mains cables on the drivers -https://www.amazon.co.uk/All-Pond-Solutions-Waterproof-Submersible/dp/B072JZLVT6/ref=asc_df_B072JZLVT6/?tag=googshopuk-21&linkCode=df0&hvadid=256124228134&hvpos=&hvnetw=g&hvrand=8511369004995293187&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1006669&hvtargid=pla-427894899058&psc=1

as for dimmers the choice in the uk is limited, your probs gona end up with standard 100k pots. like - https://www.mouser.co.uk/ProductDetail/Bourns/PDB181-K420K-104A2?qs=HVbQlW5zcXXWK3Cx41Su6Q==&vip=1&gclid=EAIaIQobChMI6sLRocXU6QIViLbtCh179wDSEAQYAyABEgIyHPD_BwE

if you need absolute full power from your drivers you might want to get some additional 6 ohm resistors to wire to the pots as most of the 100ohm pots when checked fall a bit short like around 95kohm this would only give you 95% power from your drivers adding another 6 ohm resistor makes sure you get the full 100kohm.

you probs gona want a little box to house the dimmer and a nob for the top.

All good info but just get 10K ohm resistors to be sure.
It's not a 6ohm. It's 6k ohm BTW

 

[grotbags]

All good info but just get 10K ohm resistors to be sure.
It's not a 6ohm. It's 6k ohm BTW

All good info but just get 10K ohm resistors to be sure.
It's not a 6ohm. It's 6k ohm BTW

missed a K, will add now. missed two actually so pay more attention!

 

[Rocket Soul]

Last I looked the data sheet has gen 3 slightly less fV than gen 2.

Gen 2 are 19.5v and 39v , gen 3 are 19.1v and 38.3v

The gen 2 will have the last letter been a B in the part number and the gen 3 is a C

Sometimes when you search for the part number or gen 3 you can be lead to gen 2 so keep an eye on that last letter.

Dropping voltage (while maintaining light) is one of the main ways of increasing efficiency.

Tbh i think you can probably use them on the same circuit but its not adviceable, youll see uneven load over the different strips, but really only 2% or so: many cobs have this difference between one chip and another but we still run them in parallel. But if you can start well, without "bad habits" in your design then better. Also, remember this is just what the DS says, whats the actual voltage difference?

 

[DukeFluke]

On my way out to get camera lead...

Wago blocks haven't arrived yet. Got some connector block tho. I can use this and just replace with Wagos at a later point can't I?

 

[DukeFluke]

We're building...