55 Watt UV Lamp, Replacement
The only part that wears. Once a year, whether it looks tired or not.
A 55 watt T5 UV-C lamp at 254 nanometres, single-ended 4-pin base, 925 mm without the pins. Fits the Water Experts 55 watt steriliser and most 55 watt stainless units sold in South Africa. Change it every 9 000 hours: it still glows at twelve months, but the germicidal output has dropped by a third.
Check it fits
Measure the old lamp: 925 mm from the base to the tip without the pins, 935 mm with them, 15 mm across, four pins in a square on one end, the other end sealed. That is this lamp. A lamp with two pins at each end is a T8 pond lamp and will not fit a drinking water chamber.
Changing it
- Switch off at the plug and let the lamp cool for ten minutes.
- Unscrew the gland nut at the cable end and draw the lamp out by its ceramic base, connector and all.
- Unplug the connector, plug it onto the new lamp. Hold the new lamp by the base only: a fingerprint on the glass bakes on and shades the light. Wipe with alcohol if you touch it.
- Slide it home, gland nut on, switch on. Never look at the lit lamp.
Before you buy.
Goes with it.
Whole shop
55 Watt UV Quartz Sleeve
Cracked sleeve, wet lamp, dead ballast. Keep a spare.
55 Watt UV Ballast
The electronics. Indicator on the front, surge protector recommended.
Free courier55 Watt UV Steriliser, Stainless Steel
Bacteria, viruses and cysts, stopped by light, at 2 720 litres an hour.