PWM for several high power LED's and 12v motor

Projects General Guidance
1

Hi new to Arduino been donated an Uno for my project I need to dim 3 different (Not decided) LED circuits the total power will be up to 200w over the 3 circuits. Also I want perform PWM on 3 12v JGY370 motors as well. I understand the Uno has PWM output on 6 pins how do I go about connecting 60-70w of led to these pins. I assume I need something between the uno and the led's.

Would a solid state relay switch fast enough for pwm?
Also how about connecting 12v motor to the arduino at the moment I'm running one at 5v through a usb and it hums horribly so I want to power it with 12v and perform pwm for more accurate speed control and eliminate the hum.

Thanks

2

Don't try to build high-power LED circuits yourself. Instead use ready made lamps or strips for that purpose, which can be controlled (dimmed) directly by PWM, SPI or I2C.

For motor control you need one or more motor driver modules, and of course the right power supplies for the motors and LEDs.