This is the most advanced LED tape that I know of:
http://current-usa.com/aquarium-led-...-led-with-rgb/
It will not automatically go into day and night mode. Also, any tape adhesive needs to be kept away from the snake. I'd create some kind of a diffuser I could affix securely over it using screws or something like that.
This is not a tape strip, but this light is fully automated.
http://www.finnex.net/index.php/plan..._store=default
I have one on my aquarium. I have it on a timer that comes on at 6 am and goes off at 9 pm because I think it is still too bright at night and I think they deserve dark at night. This would be even more important for a snake. It certainly could be adapted to your build, but be sure there is ventilation so heat won't build up.
Current also has a fully programmable light, but it is quite a bit more expensive. If you look around that site you should find it.
New lights come on the market all the time so check out the planted tank fish forums. I'd stay with freshwater lights rather than marine lights.