GPH450T5L/4 Replacement Ultraviolet UV Lamp 05-0010-R

They work.

These bulbs consistently work well and last. Best source for replacement products we have found.

Works well but seems less bright than others we have used.

I am pleased with the ultraviolet UV Lamp and assume it is doing the job properly. The light doesn't seem quite as bright as others we have used but I'm not sure what that means. Any advice?

Fast and straightforward

I recall purchasing what I needed was simple, fast and straightforward. No issues.