When it comes to good looking and well designed aquarium lighting products, there are few out there that rival the Giesemann Teszla LED fixtures. Besides their stunning design, the lights are also loaded to the brim with features, and it looks like they’ll be getting a key accessory to make their use so much easier. Announced at MACNA, Giesemann is releasing a Bluetooth interface, simply called the BT-Interface, that allows users to control up to four Teszla or Teszla-XT LED fixtures with their PC, Mac, smartphone or tablet. With the software interface, aquarists can fully adjust all three color channels using the multi-point time and intensity plot system, create elaborate storm and cloud simulations, and enact a 28-day real-time lunar cycle. The BT-Interface does require a physical connection to each of the fixtures that it controls. This is done through any of one of four on-board USB sockets and their associated cables, but once connected, the lights can be controlled via Bluetooth connection with any capable device. The LEDs in the Teszla lights are controlled by microprocessors, which receive their operating instructions from the interface system. The BT-Interface has a European price tag of € 199.00, and we haven’t seen an official price for the US Market. The software, on the other hand, is available free of charge. Giesemann’s use of Bluetooth instead of WiFi has both its ups and downs MORE: Giesemann Announces Bluetooth Interface for Teszla LED Fixtures