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T5 Two Pin Each End UV-C Germicidal Lamp


  • T5 15mm Germicidal 253nm UV bulb
  • Industry Standard Lengths
  • Lasts up to 8000 hours
  • Quartz Glass
  • Free ShippingWhen you spend over $49
  • TrackingKnow when your package will arrive
  • 30 Day ReturnsMoney back guarantee
  • Same Day DispatchWhen you order before 2pm

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About Pondh2o basket shop


Greenwater or single cell algae problems can be eradicated using a  Bi Pin T5 UV-C Germicidal Ultra Violet Lamp or UV light clarifier in your water garden pond.  Germicidal UV-C Bulbs are short for Ultra Violet Clarifiers also known in the pond hobby as ultra violet sterilizers. There are three bands of ultra violet light classification A , B + C.

The wavelength of the light dictates which classification it falls under. Germicidal lamps for pond UV systems are 253 NM and classed as C. NM stands for nano meters and is how the light is measured. 253 NM will eradicate and kill 99.9% of bacteria and pathogens that travel through the emitted light field.  UV lamps contain a very small amount of mercury which with the gas inside the lamp emit the bacteria killing light. Never look directly at a UV lamp when it is on as will damage your eyes.

Bulb Lengths:

  • 4 watt Bulb 5.1 Inch (132mm)
  • 6 watt Bulb 8.2 Inch (210mm)
  • 8 watt Bulb 11.4 Inch (290mm)
  • 16 watt Bulb 11.9 Inch (303mm)

The effective life of a replacement T5 UV-C Germicidal Ultra Violet Lamp is approx 8000 hours, after this point it will seem to be working but in fact the effectiveness of the lamp will be decreasing and needs to be changed. Changing a bulb twice annually will usually be good enough to maintain the filter light unit.

We stock all types made with quartz glass material  for effective transmission of the light wave.  All bulbs are designed to be suitable as the original lamp bought with the pond UV Filter.  Spent UV bulbs should be disposed as with accordance with state and national laws and can not be placed directly into the domestic trash system due to the mercury element within the UV lamp.

Please feel free to contact us for help in understanding which light bulb you require.

Visit PondH2o’s information center to read more on proper pond fish feeding for your koi in a water garden koi fish pond by clicking HERE.    As always, remember to check our Facebook page for coupons and news.

Additional information

Weight 0.88 lbs
Dimensions 4 × 5 × 10 in

16 Watt, 4 Watt, 6 Watt, 8 Watt



PondH2o search the globe for Koi Fish Pond & Water Garden products looking for original items to bring to the pond and water garden consumer in North America. Everything from Pond Pumps, floating plant baskets, mesh plastic baskets, Flexible Pond Liners to pond filters, decoys, solar powered Fountains  and pond decor. Check PondH2o's extensive inventory to see for yourself...
About Pondh2o basket shop
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