RGBW controller - max. wattage

[TomM22 0]

Dear All,

Just planning my Fibaro controlled RGBW Led lights. I'd need to control around 10-12 meters, so was wondering what is the max wattage I could put on a Fibaro RGBW controller.

The manual mentions 12A total, so if I have a 14.4W / meter led strip I could use:

- 10 meters, in case the led strip is 12V (10m x 14.4W = 144W / 12V = 12A) OR

- 20 meters, in case the led strip is 24V (20m x 14.4W = 288W / 24V = 12A)

Is my calculation correct? So could I use either 12V and 144W or 24V and 288 W as a max. on 1 controller?

Thanks!

[j.nowacki 5]

TomM22, that seems right for rgbw/rgb strip. If you want to use single color led strip, maximum rating for one channel is 6A. But notice, that such calculation gives maximum (therefore not recommended) values. For safety reasons always assure slightly decreased power consumption.

[XiteHosting 0]

Hi,

Sorry to hi-jack your topic, but might be off interest for you too.

Will using a LED Amplifier allow us to have longer led strips without increasing the current that the fibaro has to supply? I guess this depends on whether the "amplifier" just adds another power supply in parallel, or whether the channels are separated.

Please login or register to see this link.

And one other question:

Would it be possible to connect both a Warm White strip and an RGB strip to one fibaro controller, by using the black wiring as common positive?

Stijn

[j.nowacki 5]

XiteHosting, it looks like this amplifier has separated outputs and "repeats" signal from input to outputs. If it accepts kind of outputs that RGBW has (high impedance or ground potential on output) and PWM frequency matches, it should work. However we have not tested any device of this kind.

You can connect RGB and white strip with single power suply, but what do you mean by black wiring?

[XiteHosting 0]

I would like to connect both an rgb strip and a white strip to the same fibaro controller.

So the positive from the psu has to be connected to the fibaro, the rgb strip and the white strip (both black cables).

Then RGB is connected to the RGB strip, and W is connected to the white strip.

[j.nowacki 5]

XiteHosting, that is right. Make sure you will not exceed top value of current.

[TomM22 0]

Thanks!

OK, I'll keep it lower then the max. The planned length with 12V LED strip would be more than 12A, that's why I've asked. With the 24V version, I'll be around 8A.