UV lamps age: long after a tube stops looking dim, its sterilising output is on the way down. This direct-replacement lamp fits both the Jingeye JY-UV630 and JY-UV640 UV canister filters, so you can swap in a fresh tube and keep your aquarium water clear of the algae and microbes that UV light targets.

Good to know:
– Fits the Jingeye JY-UV630 and JY-UV640 UV canister filters
– Replaces the lamp tube only; the filter housing stays in place
– Check your filter’s model number before ordering
– A straightforward DIY swap that keeps a fish tank steriliser at full strength