Single color LED strip lights can be directly connected to power supply. However, if you want to dim the lights (adjust the brightness), a dimmer controller is required.
A simple touch dimmer switch is sometimes all you need. Knob dimming is also a good idea. RF remote control, mobile APP control, and touch panel control are also available. For more intelligent lighting control, that would have to be PIR motion sensor controller, automatically turn the lights on and off by detecting your movements. Choose the one you like.
Know the wiring here: How to wire single color led strip lights?
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