I am sure other people on here have used LED light strips for lighting. You should be able to find some on amazon and moth can be cut to fit. Most come with an adhesive back but you would need to better secure it down than just tape. You can also buy cheap light bars form amazon that you can secure into a cage. One drawback is many of these inexpensive light bars have digital switches for on and off so if you plan on having it on a timer you may need to get comfortable with cutting out the switch and wiring it back together without it. I had to do that for a USB light bar on my rosy boa cage. After bypassing the switch it worked great.
This is what I got that requiring removing the on off switch to get a timer to work without it coming back on in the off state.
https://www.amazon.com/gp/product/B06Y3YG8PP
Reptile basics also sells decent cage lighting
http://www.reptilebasics.com/LED-reptile-lighting