Super impressive entry, and probably the one I've had on the longest so far. I love games with builds so it's fun to play around with different ones and see how it turns out.
The point allocation system is very engaging and really pulls you forward. It's clear and the upgrades are fairly strong. When you can see the full list of abilities at your disposable, you get some anticipation to unlocking them in the future. All that works well.
Each light has it's own clear identity and that's important. When incremental game upgrades blend together too much, it can get confusing and lose a bit of the appeal. In addition, the synergy you placed between the colors (and especially the secondary colors) create lots of options for builds.
Much like RG, the builds support player playstyle to a degree. When I had time, I would go with heavy battery setups. But when I walked away to do other things I'd do more idle builds. Of course, around mid game you have no choice but to deal with batteries, but the concept is still there.
I didn't mind battery clicking TOO much because I usually just waited until Emission Theory was high enough and then sprint towards the goal. Clicking each battery in succession actually felt like an aim trainer, so that's what got me through that.
Overall this is a very well executed game with unique engagement points. It must've been a nightmare to find a decent balance for given all the different ways for players to play.