This is a lamp we made ourselves. We painted an end of wood black, attached profiles and put 2 meters of "dual white" LED strips in the profiles. ("Dual white" means the strip has both cool white and warm white LEDs, allowing you to mix them and create wider variations of colour temperature.) The strips are controlled by a Zigbee controller, which was automatically recognised by our Home Assistant installation. Using the default interface, you can control colour temperature and brightness, as well as turn the lamp on and off.