Thank you all so much for your responses.
@Ranchitat, I have a better understanding now, thanks a lot! 
@kkossev, you're absolutely right; I always need to remember to post screenshots. Thanks for the reminder. Here are the screenshots for Gledopto and the wall plug:
Gledopto screenshot:
Wall plug screenshot:
Regarding the LED controller, I changed the driver to Generic Zigbee RGBW light as adviced in another post by @dnickel and in this one by @Ranchitat but nothing happened. Now, I can't even change the colors at all. Maybe it is not the right driver ?
As for the wall plug, I found your post here @kkossev [RELEASE] Tuya Zigbee Metering Plug (w/ healthStatus) - #2 by kkossev thanks so much for having added that 
I can't even imagine how hard is to write the code for that, thanks so much 
I just changed the driver to that one and the plug can switch on and off now. I put as well the value of 1kwh but when I click save preferences I cannot see the value in the field
These are all the info I can see but I am not sure if it has kept the value of 1kwh or not.
Could it be right ?
I as well encountered that the energy duration changed directly after I put again a value for the cost of energy. These two screenshots show just before and after I clicked the value.
@EVOLVING.HOME, thanks for your thoughts. I've checked everything. Each cable separately gives the right color (RED, GREEN, and BLUE). However, when put together, I don't have the right combinations and final result of the color. Now that I've changed the driver to the generic Zigbee RGBW light, I can't change them at all. 
Thank you all so much for your responses and help; I really appreciate it!
