@teacher, not being the expert that djozz is, my first impression is that:
- the picture of the UV-led on the Jaxman site looks like the Royalighting or Intl-Outdoor led as reviewed by djozz. It can be driven by 3*7135 AMC (at least I do, on a Noctigon) but Jaxman has a policy of “not pushing the envelope” so they use 2*7135 AMC. This led emits a lot of non-UV light. You definitely need a ZWB2 filter to separate the men from the boys, so to speak, because that filter blocks the white light that prevents you from seeing what you want to see with the UV light.
- the Convoy UV-light with Nichia is standard equipped with a 2*7135 AMC driver. Stick to that, I do. When I got this light directly from Simon (Convoy) it came with a black ZWB2 filter. IMHO the output (spectrum) of this led is better than that of the Royalighting, but it still emits a considerable amount of non-UV light. You also need a black ZWB2 filter for this one.
- the question of upgrading the driver is already implicitely answered: don’t. You will just kill the led.
- as dr. Ruth already said: always wear protection. Certainly when you are using lights with a ZWB2 filter. You won’t see it coming. And not only from shining directly into your eyes but also from the refection in a glass window or bathroom tiles.