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(14 products)


5 € - 8 €


Lamp Cap (base)

Energy Efficiency Class

Kelvin (K)

3000 K - 6500 K

Lumen (lm)

1840 lm - 6800 lm

Luminous efficacy (lm/W)

77 - 91

Energy consumption (kWh/1000h)

24 - 80

Color rendering index (CRI)

83 - 83

Light colour code

830 - 865


Lifetime (h)

Store Reviews ( 939 )

Overall rating:   (4,9/5)

  Review By Tom McReynolds
Tom McReynolds

Very good experience, but better if specs came with UVB bulb

Overall, my shopping experience was very good. I had no trouble ordering on the site, the bulbs came quickly, and were undamaged and worked when I received them.The only issue I have (which might not be Svetila's fault) is that the bulbs came with no documentation. For safety, I'd like to know the UV output of the bulbs, not just their pow ...
Verified Purchase 26/11/2016
United States , Los Altos Hills
  Review By Luka
Great service!
Verified Purchase 22/11/2016

T5 Constant 

T5 Constant


  • Excellent luminous flux at high and low ambient temperatures
  • Stable and suitable for outdoor lighting or fixtures with little thermal insulation
  • Compatible with and easily exchangeable with conventional T5 lamps
  • High luminous efficacy

Areas of application

  • Industry
  • Street lighting
  • Ideal for extreme temperature requirements


  • Lumin...
Showing 1 - 9 of 14 items
Showing 1 - 9 of 14 items

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