Description

This is a 4 pin base ultraviolet lamp rated at 80 watts, carried as Neptune Benson part 1000-2671 and also listed under the Delta Ultraviolet number 70-18420-S. It is supplied as the lamp alone.

Check the number on your unit

The lamp appears under both part numbers in the source data, so match whichever one is printed on the old lamp or on the system label. The physical checks are the same either way: a 4 pin base and an 80 watt rating.

When to replace it

Ultraviolet lamps do not fail the way a light bulb does. Their germicidal output falls off steadily while the lamp still glows, so a UV system can look like it is working long after it has stopped sanitizing. Replace on the interval in your system manual, not when the lamp goes dark. When you fit the new one, keep your fingers off the glass, since skin oils on the envelope shorten lamp life.