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The Power of Reef lighting

VervVe G3 Giesemann Farben

the new generation

  • 170 watts max.
  • 1420 PAR
  • Diffusion disc for optimal illumination
  • Also available with single reflectors / HR
  • Powder-coated aluminium housing
  • Polar white or iridium grey
  • Integrated Wi-Fi control
  • Up to 50 luminaires can be combined
  • Passive & active cooling / extremely quiet
  • Handmade in Germany
  • Can be repaired even after many years
Giesemann Vervve G3 Iridium 2

The perfect reef light

With a power consumption of up to 170 watts, state-of-the-art high-power LEDs and uniform, homogeneous illumination, it is one of the most effective lights in aquaristics. The use of a diffuser in combination with optimal PAR & PUR values makes the VervVe G3 the perfect reef lighting.

The design speaks for itself and the workmanship is of the highest level.

Optimum light control

By dispensing with highly concentrating lenses, perfect illumination is achieved for areas between 50 - 80 cm in length and 50 - 65 cm in width. The specially designed, highly specular individual reflectors of each LED colour guarantee maximum luminous efficacy and optimum colour mixing of the LEDs. The entire light of the VERVvE is thus directed into the aquarium without loss.

The additional mirrored underside of the reflector surface also ensures optimum glare control and directs light reflections on the water surface back into the aquarium - 100% of the light is thus available to your aquarium.

LED Cluster

Also available in HR variant

  • Primary optics with 120° beam angle
  • Secondary optics with reflectors & 90° light distribution
  • Polished combination reflectors
  • Lossless protective glass pane


By dispensing with highly concentrating lenses and using a diffuser disc, perfect illumination is achieved for surfaces of 80 x 70 cm and depths of up to 80 cm. The entire light of the VERVvE G3 is directed into the aquarium without loss and similar to a T5.

HR variant

Alternatively, we offer the HR version of the VERVvE G3 with high-gloss individual reflectors The specially designed, high-gloss individual reflectors of each LED color guarantee maximum light output and optimum color mixing of the LED. The entire light of the VERVvE is thus directed into the aquarium without loss.

The additional mirrored underside of the reflector surface also ensures optimum glare control and directs light reflections on the water surface back into the aquarium - 100% of the light is thus available to your aquarium.

Perfect illumination

VervVe G3 Ausleuchtung

80 cm Length | 70 cm Width | 80 cm Depth

Giesemann Vervve G3 Ausleuchtung Aquarium
Vervve G3 Spektrum

Things to know about the VervVe G3 LED aquarium lighting

PAR values:

PAR measurement is used to measure the photosynthetic active radiation of plants in the visible light range (380 > 780 nm). The final effective PAR value over your aquarium depends on many factors. These include not only the water movement, but also the density of the water.

PUR values:

The photosynthetic radiation (PUR) relevant for optimal Zoox photosynthesis lies between 360 and 480 nm and begins outside the range of visible light (measured with PAR meters) in the UV range and continues in the blue range of visible light.

The PUR value is calculated by isolating the PUR wavelength intensity data for each individual wavelength from the so-called radio spectrometer analysis.

PUR in the entire blue spectrum of the new VervVe G3 corresponds to 100% PUR and, simply explained, is marginally higher than the PAR value we measured because of the undetectable UV wavelengths. Since we work with different channels in the white range, which extend from 3,500 > 8,500 K, a PUR value of 65% of the PAR values of these channels has been calculated on average.


In addition to the irradiance of a light source, the photon flux density (PPFD) should also be taken into account. - abbreviated PPFD. Here, only the usable photons and not the total energy are taken into account.

Photon flux density counts the number of photons that hit a square metre per second. The number is then expressed in micromoles per square metre and second. μmol/m2s




The successful German publishers and Youtubers Anker & Meehr took the time to take a closer look at the new VervVe G3.

You can find everything about the processing and facts in this video. English version follows

Channel LED Reeflight Vervve G3 EN

From experience and passion

We don't just limit ourselves to blue and one white channel, but the LED configuration of the new VervVe G3 LED aquarium light includes 6 channels.

This configuration offers the highest performance and guarantees the perfect lighting for marine aquariums.


LED fitting

  VervVe G3 iridium VervVe G3 pure white  
Numbers of LED Cluster 2 2  
Numbers of LEDs 56 56  
Power LED total 170 W 170 W  
Spectrum LED total 3.500 - 25.000 K 3.500 - 25.000 K  
Lifetime Middel of LED 22.000 Hours (L70/B10) 22.000 Hours (L70/B10)  
UV | 400 nm 2 2  
UV | 410 nm 4 4  
Purple | 420 nm 4 4  
Royal blue | 440 - 450 nm 14 14  
Blue | 455 - 465 nm 8 8  
Blue | 465 - 480 nm 4 4  
Cyan | 490 - 500 nm 4 4  
White | 3.500 K 2 2  
White| 6.500 K 12 12  
White | 8.500 K 2 2  


Vervve G3 VervVe lynk App Steuerung


We also used the latest technology for control and every Vervve G3 can now be controlled with our lynk Control App.

Thanks to the new smart Giesemann lynk - Lightcontrol Wi-Fi App, VervVe G3 can be controlled directly without any other peripherals. Use our well thought-out presets in Easy Mode or the extensive Professional Mode.

Share your preferred light profile with other users via Whatsapp or e-mail. The lynk app is available for download free of charge from the Apple Store and the Google Playstore.

Mounting options

The VerVve G3 LED aquarium light can be used with our separately available mounting options. You have the choice between the cable mounting system, also in combination with wall brackets, or our universal aquarium mounting brackets. Of course, if desired, in the matching colour to your luminaire.






  • Complete spectrum through 56 high-end LEDs
  • Six independent channels
  • DIffusion lens for homogeneous illumination
  • Splash water protection
  • Ultra-flat aluminium / magnesium housing 3.5 cm
  • Powder-coated in "IRIDIUM GRAY" or "PURE WHITE
  • Temperature management / active and passive cooling
  • lynk Wi-Fi control
  • Perfect PAR, PUR & CCFD values
  • Various mounting options optionally available
  • Made in Germany
  • Repair possible even after many years



Technical Details

  VerVve G3  
L x W x H 350 x 250 x 35 mm  
PAR 680 max  
Power 170 / 170 Watt (max.)  
recommendation L x B x H Aquarium bis ca. 80 x 70 x 80 cm  
Current voltage / Input 100-120V AC; 200-240 V AC - 50/60 Hz  
Weight ca. 2,4 kg  
Control Wi-Fi eingebaut / lynk Control App  
LED Channels 6
LED Colors 10
LED  Cluster 56 / 2
Distance water 15 cm mind.
Noise max. 0>30 db
Light output Diffusionsscheibe
Ambient temperature 10 - 30 Grad
Protection class IP 32
Mains voltage 100 - 240 Volt
Energy efficiency class* A
Energy consumption 170 kWh / 1.000h


Download Download: lynk lightcontrol App   Available on the App Store   Android App on Google Play


Download: Instruction manual VervVe G3


Download Download: Manual lynk lightcontrol App