Very easy to setup and use and cheap to run. The only issue I found was that the magnetic strips provided didn't have appropriate adhesive so in the top of a hot vivarium the light kept falling off. Easily fixable by gluing the magnetic strips to the light and the viv. Since the sticky goes after its been used once I don't see this as any more or less permanent. Little bit long but still a very worthwhile lighting system. Also kicks out a bit of heat which is handy.
I have a custom built vivarium for my 2 snakes and have set up a green and white light to come on at different times set to timers and it transforms the look to a very high standard and looks fantastic