SET of 2 GPH287T5L/4 14W UV Germicidal Lamp T5 tube, 4-pin base.

Price for 2 lamps.

* Power: 14 watts
* Length: ~287 mm (11.3”)
* Base: 4-pin (G10Q square)
* Wavelength: ~254 nm (germicidal UV-C)
* Typical life: ~9,000–10,000 hours

It’s commonly used to kill bacteria, viruses, and algae in:

* water filtration / UV steriliser systems
* HVAC air purification units
* pond filters or aquarium UV units