LED strip technical - buolding and testing current.

DWD1961

Gawd
Joined
Nov 30, 2019
Messages
725
I needed to build my own strip lengths so I bought some 5050SMD strips RGB 12V and cut them up, soldered them, and now I'm int eh testing phase.

I'm current testing them with a multimter and I have 39 SMDs. I'm just running them wide open from a 12V power supply (All diodes in the SMD 100%), no controller between.

I feel them getting pretty warm. Not hot as in you cant touch them, but they are noticeably warm. Is that normal for a 5050 SMD?
 
Joined
Dec 1, 2011
Messages
888
It's normal for bright LEDs to heat up some, even the small ones on those strips.

If possible for your project, you may want to try backing the strips with a thin piece of aluminum to help dissipate away the heat.
 

DWD1961

Gawd
Joined
Nov 30, 2019
Messages
725
It's normal for bright LEDs to heat up some, even the small ones on those strips.

If possible for your project, you may want to try backing the strips with a thin piece of aluminum to help dissipate away the heat.
I don't want to take a chance on shorting them out.
 
Joined
Dec 1, 2011
Messages
888
I don't want to take a chance on shorting them out.

The backside of the strip is electrically isolated (at least all the ones I've seen are). The only place you might have to take any special care is at the solder points where the wires meet the strip, and a small piece of electrical tape will protect that just fine.
 

DWD1961

Gawd
Joined
Nov 30, 2019
Messages
725
The backside of the strip is electrically isolated (at least all the ones I've seen are). The only place you might have to take any special care is at the solder points where the wires meet the strip, and a small piece of electrical tape will protect that just fine.

After cleaning the solder joints with 99.9% iso alcohol, I used heat shrink insulation.
 
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