DiY LEDs - How to Power Them

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ShyGuru

Well-Known Member
While I'm always a fan of overkill, I'm also open to suggestions. Saving a few watts, especially if they're being used needlessly, translates to dollars in the long run. Would you care to suggest a different option? I'm open to any reliable suggestion. I only hesitate to purchase no name drivers from sketchy sources. I prefer brands like meanwell and from places like mouser, digikey, ect because should I have any issues I could always return it. Unfortunately I have that kind of luck so I've learned in the past to cover my self just in case. And btw is anyone wondering what happens if you wire a 220v driver to a 110v outlet? Luckily in my case it only tripped a breaker and didn't fry the cob or driver. Always pay attention to the small print on the driver BEFORE hooking it up to avoid valuable mistakes. And to think I used to be an apprentice electrician lol.
 
ReeferDance

ReeferDance

Well-Known Member
Greengenes707 said:
I meet a rep from, LSD led drivers, a chinese factory/company. He was chinese and it was hard to communicate, but I got the info I needed to check them out.
They are so damn close to meanwells. But...they have a bunch of different currents to choose from in each wattage class compared to meanwell.
They don't have a 200w dimmable to compromise from the hlg185. But there are a lot of smaller options that fit fewer cobs that meanwell lacks. Or some 3590 77v version options.

I am trying to get a few samples, but if anyone wants to beat me to it or needs a special current they have.

http://lsdpower.com/en/pro.asp?ClassID=12
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Might be getting some 150 and 200 watt drivers from LSDpower soon. Good prices, shipping is a little steep but I sure am going to enjoy that 94% efficiency :bigjoint:

Time to upgrade some of my drivers!
 
Greengenes707

Greengenes707

Well-Known Member
ReeferDance said:
Might be getting some 150 and 200 watt drivers from LSDpower soon. Good prices, shipping is a little steep but I sure am going to enjoy that 94% efficiency :bigjoint:

Time to upgrade some of my drivers!
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Im game too. They just called me yesterday. They are telling me the dimmables aren't going to be available for at least 2 more weeks. So make sure they are sending you a dimmable(if thatnis what you want).
 
D

draz

Well-Known Member
I'm considering 6x CXB2530 running off a HLG-120H-C700. The constant current range says 215V max(240V for overvoltage protection). I'm right on the edge depending on what Tc I end up getting( I will be using a very oversized heatsink). This allows a Vf of 35.8 per COB which at a Tc of 25 looks about a max of 650ma. I do plan on running them probably even a bit lower than 650ma. Basically if I dim the drivers slightly before they are turned on I should be Ok. Right?
 
Rahz

Rahz

Well-Known Member
Just a heads up. I got an email from Meanwell after inquiring about their HLG-240H-C series which mysteriously is not available yet there are datasheets on the net. The driver is in development and is expected to be available in August of this year.
 
medicinehuman

medicinehuman

Well-Known Member
Well I ran into a new problem when plugging my HLG185 700B, when I plug directly to an outlet it works fine, when I plug into a bar or timer it's lights out. I have 20A breakers, 15A timers and bars. I have 4 CXB3590's 72v hooked up . I unplugged a 4light fixture with 4 CXA3070's 36v and plugged in the 72v and nothing. I tried other plugs and same thing. Maybe the timer is not right? Any ideas any one ?o_O
 
medicinehuman

medicinehuman

Well-Known Member
Greengenes707 said:
Are you on 120 or 240? It shouldn't matter if the timer is grounded or not.
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I,m on 120 and they work fine when grounded but tried 2 different timers and both were the same they didn't work, Both timers are not grounded. I'm usually good with electricity but this baffles me.
 
Greengenes707

Greengenes707

Well-Known Member
medicinehuman said:
I,m on 120 and they work fine when grounded but tried 2 different timers and both were the same they didn't work, Both timers are not grounded. I'm usually good with electricity but this baffles me.
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Can you flip the timer around. Or is it stuck in one orientation/polarity. It seems like the ground wire is actually your neutral. When the plug is grounded, the circuit is complete...since a ground and neutral in a 120v system are basically the same. But when the ground is taken out of the equation, the circuit isn't complete, and it wont power.
 
medicinehuman

medicinehuman

Well-Known Member
Greengenes707 said:
Can you flip the timer around. Or is it stuck in one orientation/polarity. It seems like the ground wire is actually your neutral. When the plug is grounded, the circuit is complete...since a ground and neutral in a 120v system are basically the same. But when the ground is taken out of the equation, the circuit isn't complete, and it wont power.
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Well shit, I feel pretty stupid now. I had the nuetral and ground mixed up like you were saying. I should have caught or check it or just did it right. :eyesmoke:& senior moments. Thank you for bringing it up, it made me go strip the wires to see.
 
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