Question about leds

[dakotasreef]

I plan on adding some uv led's to my biocube. I am not electrically intelligent enough to figure out.

 

Can I run 6 1w uv leds on a meanwell 60-48p. If not then what type of driver can I use

 

http://www.superbrightleds.com/moreinfo/component-leds/prolight-1-watt-ultraviolet-leds-140-degree-viewing-angle/334/1277/

[Guest thefishman65]

I would use a 24 volt power supply and some resistors to limit the current. The 60-48 will not work. You would need something like a 60-24 with the current limiter turned way down.

[dakotasreef]

Thank you. I was hoping it would be as simple as the 3w crees. I appreciate the response.

[Guest thefishman65]

Now the voltage is different and you are using fewer. The Vf is about 24 volts. So IIRC the 48-60 goes to 48, but you might need to go lower. You should also consider ELN of lower wattage since they might be cheaper.

[dakotasreef]

Something like the 30-5?

 

http://www.trcelectronics.com/Meanwell/power-supply-eln.shtml

[Guest thefishman65]

No you would have to worry about parallel strings. If one LEDs goes out the current will increase through the rest, and one of them will go and a chain reaction occurs. More like the ELN-30-24.

[dakotasreef]

I really appreciate you taking time with this.

 

So if I get the eln-30-24 would I just wire them like the 3w crees. Would there be any special instructions like, minimum # led's, parallel, series, resistors needed, etc.

[Guest thefishman65]

6 of the LEDs at a forward voltage of 3 to 4 volts makes a string voltage of 18-24. Double check the than ELN goes that low, but I think it does. Wire them in series and you should be good.

[dakotasreef]

If I read this right 21.6 is the minimum voltage.

 

http://elcodis.com/datasheet.php?c=5395897&c_name=ELN30-24P&doc=237289

[Guest thefishman65]

You are right, lower than I thought. That should work the LED voltage can go down to 3 volts. So using the current adjuster you should be good.

[dakotasreef]

Sweet! Thank you so much. I will post my results once I complete it. If your ever upto in the Frederick,md area Lmk. I would be willing to throw a few frags your way.