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(2 customer reviews)

£22.95 ex VAT

  • GPH550T5L/4 uv lamp.
  • This 28 watt ultraviolet lamp is used for Air and Water Disinfection.
  • Emits high intensity uv-c or germicidal light.
  • Availability – In Stock.
Quantity discounts
1-5 £22.95
6-10 £22.38
11+ £21.80


GPH550T5L/4 ultraviolet lamp.

  • Output – 28 watts.
  • Length – 550 mm.
  • Base – 4 pins.
  • Wavelength – 254 nm.
  • Life – 9000 hours.

Also known as :

  • GPH550T5L/4 HA
  • GPH550T5L/4 LT
  • GPH550T5L/LS/28W

We can also supply a two different uv lamp ballasts for this lamp. The first “UV Lamp Ballast” is a more simplified version. The “EPS51-425-40L” ballast is a more advanced version with a lamp life countdown display. Please see links below :

UV Lamp Ballast  or


2 reviews for GPH550T5L/4

  1. gavin1 (verified owner)

    Lamps are spot on to replace a yearly changeover on all our old Sita SE2 systems, A superb company to deal with, Very helpful, polite and some of the best prices you’ll find online. Good job folks.

  2. Brian Hodgson (verified owner)

    Good quality lamp at a good price, wish I had known about this company years ago.
    Will definitely be using again.

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