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Giesemann TESZLA LED lighting system hits retail shelves next month

By Leonard Ho - Posted Jan 31, 2012 07:00 AM
Giesemann's first total LED lighting system, the TESZLA, is scheduled for worldwide distribution early February 2012. Giesemann has informed us that some areas may not receive delivery for 4-6 weeks due to heavy demand. Read details and Giesemann's promotional literature after the jump.
Giesemann TESZLA LED lighting system hits retail shelves next month

Giesemann new, fully-automated LED system: the TESZLA

Quick Specs

Dimensions: 10.0 x 7.3 x 1.9 inches (25.5 x 18.5 x 4.8 cm)

Weight: 5 lbs (2.3 kg)

Body Color: Matte silver anodized and optional high gloss "pure" white (pictured)

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The LED array consists of:

  • 10 x Cree XM-L white
  • 4 x Cree XP-G Blue (465-485 nm)
  • 4 x Cree XP-G Royal Blue (450-465 nm)
  • 2 x Unspecified "Special" 7000-8000° Kelvin LEDs
  • Loss-free 120º lens
  • Total Output: 66 watts

Programmability:  4 differently assembled circuits separated into three groups for individual programming.  Dimming is controllable from 0-100%.

Cooling: Passive and active cooling employing stepwise (variable) temperature controller.

Recommended Aquarium Size: 20 x 20 x 20 inches (50 x 50 x 50 cm)

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The thermally-controlled cooling fan is located on top.  The user interface is located on the front bezel.

Promotional Literature provided by Giesemann


GIESEMANN´s brand new TESZLA LED is an innovative lighting solution for all LED lovers. TESZLA features an unusual, elegant design and its high quality functional aluminium housing contains all the important functional elements. Two versions of TESZLA are available - the standard version with a matt anodized aluminium finish and the special “pure” edition with a shiny white powder coating. Each version features black varnished glass elements.

LED technology made in Germany

When developing our LED systems every tiny little detail was important to us. All the components including the housing, the thermo-elements and the electronics board – the heart of each TESZLA – was made by us in Germany. Fully automated board assembly and robot-controlled manufacture allow for compe titive production whilst, at the same time, ensuring extremely high manufacturing quality and construction precision. Every TESZLA light is equipped with a micro-controller which monitors the internal operational temperature of the LED. Once a predetermined temperature has been reached, an integrated fan is turned on. The speed of this fan is adjusted depending on the heat generation. This ensures that every light can always work under optimal conditions and will not be damaged due to overheating.

Fascinating light output

The selection and assembly of the light boards alone prove that the TESZLA series features the most up-to-date technology. Every group of lights is controlled its own output driver. All the driver circuits are controlled via an ultra-modern processor which monitors all lighting and operational parameters so as to ensure constant colour and light values. Thanks to the latest XLamp(R) XM-L High-Voltage LED from CREE, the system uses less electricity and provides an impressive amount of light. Every board features a combination of CREE XM-L white LEDs, CREE XP-G blue and royal blue LEDs as well as two special LEDs – the entire output is 66 Watts.

With regard to the optics we avoided using additional lenses as this means that a lot of the light output is lost. TESZLA is therefore equipped with a loss-free 120° lens which provides the aquarium with the entire amount of light emitted. Contrary to many other lighting systems with lenses, there is no danger of coral being bleached by concentrated beams. GIESEMANN’S many years of experience come into play when developing this light and when defining the light distribution. Integrated mirrors reflect all light beams onto the surface to be illuminated and thus guarantee perfect lighting.

Fully automated lighting program

We constructed TESZLA so that it only requires a few programming steps to enable the perfect light simulation throughout the day. The board features 4 differently assembled circuits with a total of 20 LEDs which are separated into three groups for individual programming. Select the desired light output for each colour group to create your personal mix of colours. Once you have confirmed the colour selection, the light will automatically start with the sunrise cycle and regulates the system at predefined times turning the desired light output up and down as required. During the night phase a moonlight simulation kicks in using the royal blue LED on a reduced setting. In addition to this, each TESZLA light features an interface to your existing aquarium computer thus making it possible to control each individual group of lights externally. This means that numerous lighting scenarios can be implemented depending on your computer.

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Modular assembly options

TESZLA lights can be used in a variety of situations. For assembly on or above the aquarium we provide two options – attachment via an adjustable steel wire
suspension or via an assembly bracket designed especially for the TESZLA series that attaches to the edge of the aquarium (available as an accessory).

Extensive warranty

As the TESZLA series is 100% made in Germany we are able to guarantee the highest performance and quality standards. At the same time we offer a simple replacement parts service so that your lighting does not become a disposable product. As with all GIESEMANN products, the TESZLA series has undergone extensive long-term testing. As the only TÜV certified company for aquarium illumination worldwide, we can therefore guarantee both the high standards and the safety of our products. That is why all our products come with a 24 month guarantee.

Technical data and specifications are subject to change without notice. Copyright 2011 –GIESEMANN – all rights reserved. Developed and assembled in Germany by Giesemann Lichttechnik GmbH Buerdestrasse 14 – D-41334 Nettetal

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Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.

Website: http://www.advancedaquarist.com.

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