Uvbs: id try too get singles rather than strips, check out nachoooo s poosting history i tthink theyare the most efficient. Seems like you can do just as well white 365nm or even near uva though. 420nm seems also to be a good bet. But dont concentrate them in a strip unless you caan afford to buy enough to get them spread out.
Uvb diodes should be over heatsinked: nice big sinks with no contact with your main lighting so they can be kept as cool as posssible.
Another option would be getting strips custom with 660 + uv on the same strip, maybe 4:6 proportion. But im just guessing