User Tools

Site Tools

Der Server wird in einigen Tagen umziehen. Um die Telemetrie
weiterhin nutzen zu können, ist ein Firmwareupdate erforderlich!


LED controllers for fish tank lighting (fresh and sea water) and LEDs are in stock and available immediately. Nonetheless, please plan your demands in good time.

CoolTWILED 3.x is a wireless programmable 12channel LED controller/driver board. Configuration is possible via browser on almost any platform: Windows, Linux, Android, Apple IOS.

20 Watt CVU LEDs combine cyan (490nm), violet (420nm) and UV (380nm & 400nm). cvu_rgb_en.jpg

On request, CoolTWILED 3.x SLAVE is available with fan ports (so that two additional fans can be connected per board).

Please order via email

If you have questions, please read the pages below “Available for ordering”.

Please order via email:

Available for ordering


Fresh water and marine aquariums of our customers (built using our lighting controllers and LEDs).

No longer available

Other projects


This page in German (Seite auf Deutsch)

Please order via email:

CoolTWILED 3.x is a wireless programmable LED controller/driver board particularly designed for fish tank illumination (fresh and sea water). Configuration is possible via browser on almost any platform: Windows, Linux, Android, Apple IOS.

It is possible to simulate drifting clouds, thunderstorms with lightning, moon phases, twilight, sunrise, sunset and many things more (see the bottommost video).

CoolTWILED is developed in Germany. We ship world wide. During setup and operation no internet connection is required!

Natural spectra are especially desired in aquariums due to the demands of plants. By using LEDs of different wavelengths in a given combination it is possible to nearly replicate the visible parts of the sun's full spectrum in various depths. This way the fresh water bundle was created. b.jpg

The reef bundle was designed for marine aquariums to offer a very wide blue spectrum along with a high UV and violet ratio to stimulate the fluorescing effect in corals. a.jpg q.jpg

For DIY projects, CoolTWILED 3.x is also available separately. It provides high efficiency LED drivers on each of its individually programmable 12 channels so that high-power LEDs can be directly connected.

This website makes use only of a technically necessary session cookie for the duration of your visit • Contact • Legal info • Privacy (PGP) United States 14:39:35 up 9 days, 11:05, 0 users, load average: 0.40, 0.40, 0.32