MR16 and 24V experiences

[fjaust]

hi everyone,

i understand the MR16 can be powered for 24V as long as the 5v regulator has a heat sink.

i was after some opinions from people who have been using them with 24V, especially in warmer environments - in Melbourne we don't get snow, in fact quite the opposite, we have summer weather at Christmas time which could range anywhere from 20 celcius to 40 celcius, depending on what good old mother nature wants to throw at us.

also, is there a 50Hz firmware version for the boards?

thanks,  scott

[KeithTarpley]

Greetings,,,

The MR16 uses DC input, so no ac hz difference.

Keith

[fjaust]

Greetings,,,

The MR16 uses DC input, so no ac hz difference.

Keith

ah yes, thanks for that

[cpnbnanamn]

This brings up a good point..  Now that V2 has a heatsink on it, can it be safely used with a 24VDC PS, or are there other adjustments necessary?

-Roger

[fjaust]

hi roger,

there are no mods necessary for using 24V. as long as you have a good heat sink it should be fine. when my boards show up and i get started on construction i'm going to make sure that i have a decent heatsink and some good airflow to them in whatever cases i use, as i live in a warm/hot christmas climate.

thanks, scott

[cpnbnanamn]

Does the heatsink that came with the kit for the 5V regulator large enough?

-Roger

[fjaust]

Does the heatsink that came with the kit for the 5V regulator large enough?

-Roger

i'm not sure as i haven't seen one yet. just do a test run and measure the temp of the heatsink and/or regulator and go from there. there are plenty of heatsinks on the market if the included one is not enough for your environment.

if i read the specs of the regulator right, the max temperature is 125C (257F). i don't know what is considered a 'reasonable' operating temperature, hopefully someone else can answer that one.

[RJ]

It must be as a number of users use 24v on it. This is why I added it, for them cause they were rigging stuff before. I have not heard of any issues. The power draw on it is not very much.

RJ

[kevr]

I am running 24v on my MR16's driving shortened strings of LED's on arches, candy cane fans etc, I have had them running in my garage for extended times testing them out.

I have checked the heatsink and it hasn't got too much over 50-60 degC on any of them (4 at this time), this was driving them pretty hard using xLights test sequences. I did buy a larger extruded aluminium heatsink but I haven't had to use it.

Kev :-)

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4 MR16
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