Can the LS5P be used to control a 24 Volt Tunable Single color LED? If so, what where should the three wires go? What power supply needed?

I was advised to connect as follows:

VCC----->Red

R---------->Yellow

G---------->White

Following these instructions causes the controller to lock in the on position and not accept commands.

I experimented with several combinations and the correct wiring for a tunable white COB strip is:

VCC----->Red

R---------->White

W---------->Yellow

Is this controller compatible with amazaon alexa? Is there a skill?

Another question. Does your controller work with Amazon Alexa?

1. How many continuous feet can be supported by one controller?

2. How do you access the settings page for the controller?

There is no problem. The output voltage is equal to the input voltage, so you need to use a 24V power supply. In addition, you also need to set the correct GPIO on the LED settings page. The GPIO parameters are all in the product details page. https://www.athom.tech/blank-1/wled-rgbw-light-strip-controller