The most flexible T5 hybrid system

STELLAR lets you combine your favourite LED light module with two banks of high efficient T-5 lights. Combining LED and T-5 lighting gives you the best of both worlds. T-5 offer with the full spectrum and the edge to edge coverage proven success for all reef aquariums.

Successfull HYBRID concept

STELLAR is based on our very successful GEMINI Hybrid which means that two groups with 4 T-5 bulbs in total are powered with VHO ballasts for high output and excellent colour rendition. Each T-5 lamp has their own reflector, made of the best reflector material on the market.  The fixture body is made of high grade aluminium and completely powder coated in iridium-metallic or pure-white.

Combine your STELLAR with some of the most popular LED modules on the market or with the GIESEMANN PULZAR and other LED light bars. Each STELLAR comes with adjustable mounting brackets that can accept most LED modules on the market. Additional mounting brackets for more LED - units are available seperately.

Mounting: the choice is yours

Mounted on the wall or suspended from the ceiling – the STELLAR, constructed from high quality aluminium, is as flexible as your needs. Various mounting components allow wall or ceiling suspension.

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Inseparably connected:
Design and Quality

The slim construction with functional brackets for mounting your favourite LED modules is manufactured from high quality salt water resistant aluminium, all components are integrated in the lamp casing.

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STELLAR References

Numerous customers have been relying on their aquarium lighting for years. Here we show you pictures and videos about the STELLAR, which kindly have been provided to us by our customers.

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Highlights STELLAR

  • powder coated high-grade aluminium body

  • 600, 900, 1200, 1500 mm / 24'', 36'', 48'', 60'' inch length

  • 4 VHO T-5 bulbs in two groups

  • 4 x 24 / 39 / 54 / 80 Watt T-5

  • own reflector for each T-5 lamp



  • 2 power cords 250 cm

  • adjustable mounting brackets
    for most LED modules and LED bars in the market

  • combine it with your favourite LED


  • Dimensions and Recommendation
  • Colours
  • Mounting & Equipment
  • Download

Dimensions & Recommendation
STELLAR T-5 Hybrid


T-5 Wattage* 4 x 24 Watt 4 x 39 Watt 4 x 54 Watt 4 x 80 Watt
Dimensions (mm) 606 x 575 x 50 906 x 575 x 50 1206 x 575 x 50 1506 x 575 x 50
Space for LED modules 261 x 600 mm 261 x 900 mm 261 x 1200 mm 261 x 1500 mm
Dimensions with
shortening set
606 x 500 x 50 906 x 500 x 50 1206 x 500 x 50 1506 x 500 x 50
Space for LED
with shortening set
186 x 600 mm 186 x 900 mm 186 x 1200 mm 186 x 1500 mm
Distance between T-5 425 mm 425 mm 425 mm 425 mm
Number of power cord 2 2 2 2
Cord length 250 cm 250 cm 250 cm 250 cm
T-5 reflector individual individual individual individual
Weight (without LED) 3.1 kg 4.6 kg 6.2 kg 7.6 kg



What`s included        
T5 Hybrid Fixture** 1 1 1 1
T-5 acrylic shield 2 2 2 2
universal LED bracket*** 1 2 2 2


230 Volt mains voltage

* Bulbs and LED modules are NOT included  ** unassembled  *** additional brackets fore LED modules sold separately



Giesemann brings colour to your aquarium

Standard colours 
without surcharge


Polar withe


Monting components
and Equipment




Shortening Set

STELLAR Shortening Set
to reduce the standard width to 500 mm
and reducing the width for LED modules to 186 mm

Shortening Set

Monting components

Hanging suspension kit for GEMINI/STELLAR
with hight- and gradiant-adjustment 
L =1500 mm

MATRIXX II Stahlseilset


Aquarium mounting set
Set with two units for STELLAR
Width = 44cm; for aquariums up to 15mm glass.







Find here the STELLAR manual


Frequently asked questions please find here



Please find products and prices in our SHOP.

The GIESEMANN Products may be found at premium aquaristic shops all over the world. Please ask your dealer for detailed information and aquaristic consultation.