JBL Replacement lamp UV-C 18W
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55 W: glass – 50.1 cm _x000D_ 55 W: glass with connector – 52.5 cm _x000D_ 55 W: glass with connector and pin – 53.2 cm
No, this bead consists of mercury and is absolutely necessary. The bulb is only defective if the ignition filament is torn. _x000D_ After the lamp has been ignited, the temperature inside increases and liquefies this bead, creating mercury vapour. The resulting ionisation processes ensure the desired UV-C radiation to kill germs, bacteria and algae. Due to the mercury content, used UV-C bulbs may only be disposed of at appropriate collection points (e.g. for fluorescent tubes).
How often a UV-C bulb needs to be replaced, for example in the JBL PROCRISTAL UV-C Compact plus units, depends on its operating system. After a maximum of 6000 - 8000 operating hours, the output will have dropped so far that a change is necessary. In the case of continuous operation (24 hours), a replacement will be necessary after 250 days. That’s why in ponds the bulb is best changed in spring while the technology is being restarted.
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