Razor T5 Retro Kit

Grouped product items
2x24W Razor T5 Retro Kit

SKU: 209561

In stock

Discontinued by Bulk Reef Supply

- +
2x54W Razor T5 Retro Kit

SKU: 209563

In stock

Discontinued by Bulk Reef Supply

- +

The T5 Razor Light is the smallest and thinnest section that Giesemann could manufacturer while still keeping all of the electronics within the body of the light.
The Razor T5 Retrofit kit is ideal for aquariums that have hoods or where a full-size fixture cannot fit. Cooling of the built-in electronic ballasts is provided by precisely calculated surface structures in the aluminum section.

The high-quality anodized finish of the section provides optimum light reflection and is resistant to aggressive salt water, while the built-in electronic HF ballasts make for flicker-free operation with an immediate start-up.


  • Twin-lamp watertight light module (not for underwater use)
  • Variable mounting options
  • Matt anodized aluminum section
  • Flicker-free electronic HF ballasts
  • 60-inch power cord

Model (length x width x height)

  • RAZOR 2x24 Watt 23.4"x7.7"x1.9"
  • RAZOR 2x39 Watt 35"x7.7"x1.9"
  • RAZOR 2x54 Watt 46.8"x7.7"x1.9"
  • RAZOR 2x80 Watt 58.6"x7.7"x1.9"
More Information
Lighting Type Fluorescent
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Product Questions


When will the 80W be in stock?
Question by: Simon Chelebyan on Jun 6, 2017, 6:39 PM
It looks like we have an order we are waiting on which should be here by the end of the month!

Happy reefing!
Answer by: Zack on Jun 13, 2017, 4:23 PM
Does the fixture come with bulbs? The description does not clarify.
Question by: Nick on Jan 28, 2017, 5:05 PM
Hey Nick,
This fixture does not include the bulbs, they would need to be purchased separately. If you have any other questions, let us know!
Answer by: Jason Smith on Jan 30, 2017, 8:44 AM
How can I hang this retrofit from the ceiling? I have heard conflicting answers on using the regular metal hanging kits
Question by: Thijs van Besouw on Dec 20, 2016, 10:04 PM
Hey there! Unfortunately, without some DIY adjustments, the hanging kits will not work with these retrofit T5 fixtures. You would have to DIY some sort of bracket or adapting piece in order to hand them. :-(
Answer by: Randy on Dec 21, 2016, 5:35 PM
Do they lights include a hanging kit? If not, which kit would you recommend?
Question by: Phillip Piddington on May 30, 2016, 5:53 AM
Great question!
The hanging kit is not included. Either of the Giesemann hanging kits will work as the wire can mount directly to the fixture without the need of the different size y splitter.
Answer by: Connor on Jun 7, 2016, 1:48 PM
Are these ballasts dimmable? Also, would the spread on the 39w be good for a 48x24x12in frag tank?
Question by: Brian Balint on Apr 25, 2016, 8:39 AM
Great question!
These are non dimmable versions. For a 48x 24 tank two of the fixtures would be recommended.
Answer by: Connor on Apr 27, 2016, 2:42 PM
How well will the 80W fixture cover a 72" long tank? My plan is to use two of the 80Ws and a few Kessil 360WEs on my 180 gal.
Question by: Phillip on Mar 16, 2016, 7:51 AM
Great question!
The 80W version would be great over a 72" tank and is similar to the 2x 80 watt T5 we have running over our 52 weeks of reefing tank. This will be a great addition to the kessils. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 16, 2016, 11:21 AM
Are they okay 7" above water.? Splashing
Question by: Jody on Mar 13, 2016, 11:28 PM
Great question!
We have ours mounted around 6-7" above the water level. With good enough flow without creating a ton of surface agitation the splashing will not be a large issue. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 15, 2016, 11:30 AM
Which hanging kit will work with these lights?
Question by: Stephen on Feb 5, 2016, 2:11 AM
Great question!
The 260 mm will be a perfect fit! Overall both will work with the Razor. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 2, 2016, 12:08 PM