LEDs Drivers + Dimmer: a smoking gun?

[hydrosoul]

So I have 12 blue LEDs connected like a strip (+-+-+-+-....), in series, and after calling two different places I got to different answers; afraid of burning everything i thought to share it here.

12 blue LEDs total power: ~36w, v= 34v ~36v, constant current= 700mA.

I have found 3 different drivers however i am not sure which one fits these LED configuration because of not much experience:

Driver A. Mean Well MW 9~48V 700mA 35W AC/DC LED Driver LPC-35-700 TUV Class 2 IP67 UL
(can this driver burn my LEDs for having a voltage > of 36v?)

Driver B. Constant current LED Driver, 18-54v, 40W, 700mA
(can this driver burn my LEDs due to higher power [40w] ?)

Driver C. Constant Current Waterproof Led Driver 100-240v AC to 700mA 30-50v DC (36W)
(would the higher voltage burn the LEDs?)

Which one should i get? I am afraid to make a simple mistake which would burn all the LEDs.
Robert

 

[qy7400]

For on/off use the LPC-35-700, if you want dimming use the ELN-60-48D (1-10VDC) or 48P (PWM). The ELN drivers you can adjust the current via a pot inside the driver to max out at 700mA so you don't fry the LEDs.

 

[Aqua Pro Builder]

All drivers you mentioned should work. Do you notice the spec of the drivers a has range of voltage instead of a fixed voltage? That means it's the working range and so when the maximum and minimum operating voltages of the connected LED are within that range, it is safe to use as long as you make sure the current is set to 700ma.

 

[pecan2phat]

Wingo,
Why do they drive 3w emitters at 700ma, hence making them 2.5 watts?

 

[hydrosoul]

Thanks for your reply pecan2phat, very helpful.

I have a thought, however, and this is the my insecurity; the seller did not mention anything about these LEDs to be dimmable or not, so my question is: are all these small LEDs dimmable with the proper driver+dimmer?

I bought them from ebay, i can leave the link if it can help.

 

[Aqua Pro Builder]

Wingo,
Why do they drive 3w emitters at 700ma, hence making them 2.5 watts?

Most drivers made are for LED enclosed in a fixture which may not have active cooling. By lowering the current, there will be less heat and thus less likely to overheat the LEDs. Meanwell trying to make their drivers more versatile, so they usually have a dial inside the driver box for you to dial up/down. However, if you don't have the tools or knowledge to measure currently properly, it becomes an inconvenience. In fact, many 5W LEDs such are recommended to run only at 3W by MANY DIY REEF LED suppliers. It has become a habit to run them at below the factory rating.