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Gamma Illumination TTS 1101 Warm White LED Downlight

Item code: 28475


The British-made TTS 1101 Warm White LED Downlight has a powerful 1100 lumen Philips Fortimo LED SLM engine at its heart, and offers an impressive efficiency performance for easy compliance with building regulations.

  • Commercial LED downlights ideal for retail environments
  • 16W = 18W compact fluorescent
  • Product shown with white bezel (not included) Bezels are required, and are available in 3 finishes. Please purchase your bezel when ordering your downlight
  • A range of optional diffusers are also available to purchase separately
  • Warm White, 3000k LED
  • Size: H 99 x Dia 130mm. Cut out 110mm
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Expected Delivery Date
Fri 5th Jun

More Info

Code Unit Price ex.VAT Stock Qty Buy
1-4 5+
£89.99 £82.99
In Stock

Gamma Illumination TTS 1101 Warm White LED Downlight

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The TTS 1101 Warm White LED Downlight from Gamma Illumination is decidedly low profile, with a height of less than 100mm inclusive of its highly efficient passive heatsink. This makes it easy to install in shallow ceiling voids, and with its superior lumen-to-watt efficiency the TTS is an attractive choice for architects and specifiers looking for compliance with Part L Building Regulations. An LED driver is supplied as standard with TTS fittings.

The multi-faceted reflector design of the 1100 lumen TTS 1101 Warm White LED Downlight helps to capitalise on the impressive system-level efficiency of 69 lm/W, which only reduces to 63 lm/W luminaire efficiency with an impressive 92% DLOR (Downward Light Output Ratio).

Ideal as a replacement for equivalent 18W pin or spiral CFL downlights, the TTS 1101 Warm White LED Downlight boasts a phenomenal 50,000 hour lifespan, which virtually eliminates all need for lighting maintenance! A minimum CRI of 80 for colour accuracy makes the TTS 1101 Warm White LED Downlight a good choice for use in retail, hospitality and office environments.

With its twist-and-lock bezel system the TTS 1101 Warm White LED Downlight is compatible with a choice of bezels in white, brushed aluminium, and polished chrome finishes. Please note: the TTS1101 does not come with a bezel from new, so you’ll need to pick one up on your way to checkout. An assortment of diffusers is obtainable for use with Gamma TTS system lights, each adding a modifying effect and often an IP54-rated level of protection against dust and water.

Also available to special order are dimmable versions of the TTS Downlight. Please contact our sales team to discuss your requirements and any possible compatibility issues you may encounter with existing dimming switches.


The TTS 1101 Warm White LED Downlight uses a 16W Philips Fortimo LED SLM engine with a 50,000 hour lifespan (L70), and emits 1100 lumens of 3000K light. System efficiency is 69 lm/W, which reduces to 63 lm/W luminaire efficiency with a DLOR of 92%.


The dimensions of the Gamma TTS 1101 Warm White LED Downlight are:

  • Height: 99mm
  • Diameter: 130mm
  • Cut-out: 110mm


Additional Information

Supplier Code TTS1101
Brand Gamma
Height 99mm
Width/Dia 130mm
Cutout 110mm
Type Ceiling Light
Format Downlight
Max Wattage 16W
Lumens 1100
Average Hours 50,000
Colour Rendering 80
Light Colour Warm White
Colour (K) 3000
Features British Made, High Frequency, LED
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