Hozelock Replacement 12W Double Ended UV Lamp Bulb - 1780 0000This Genuine Hozelock Part is the 12w replacement UV Lamp for the Hozelock Filter and UVC range. UVC Bulbs should be changed at regular intervals, ideally in the spring before the season starts. This is to guarantee the full strength capacity of the UVC light waves. These Hozleock replacement 12w UV lamps have 2 small pin connections at both ends. Key Features: Part Number: 1780 0000 Genuine Hozelock Part Change annually Double ended 2 pin design (2