Coral-Shop just released a simple digital programmable dimmer for LED lights. The ModuLight LED-D-A1 was designed to be easy to use for 12-24V constant voltage LED lights with the typical assortment of features such as full control of timing for full sunrise to sunset options to allow for powering on and off lights, adjusting the intensity over time, and adjusting the transition times.
The LED-D-A1 will control up to 200W at 12V and 360W at 24V. The module is available in a DPS version with the display and circuit board you can add to your own case or with an acrylic case. The display is a simple monochromatic one with adjustable backlight intensity control and the option to add external button connection for a manual on/off switch. The module retails for around €200.