Advice with UV lights

[gbskda]

I was wondering when I should turn on my UV lights for my Coastals.
At the moment the lights are on from 8pm to 4am nightly.
Should these lights be on during the day or night

[africancichlidau]

If you have the need to use U.V. lights at all then use them for the daylight hours which simulates natural photo-periods. It is hard to improve on nature

[Artie]

If you have a uv light and want to use it, it has to be at daytime, just like normal daylight, prob. 12 hours in summer and maybe about 8 in winter. Just bring it down with the seasons. But having said that, with coastals, as in your case ( which are nocturnal ), you can use just normal cheap fluro, for daylight.

Cheers Artie

[Greebo]

Just curious why you would run your UV light at night?
Is it possible you meant infared light?
Pythons are nocturnal and if you are simulating daylight with UV lights at night...it will confuse the hell outta the poor little fellas.