I tried them all out, all of them needed 2 coats and dried fairly quickly. For the neons I used a white base coat as this seems to be better than trying to get them to be opaque on their own and it makes the colour nice and bright.
Here is the orange under a UV light:
The pink is slight darker and more neon in real life.
I, for some reason, only did one coat of the purple, which is a shame. Its a really nice purple and looks less blue tinged in real life, I think it'd make a nice gradient mani with one of the neon pinks.
I really liked this green, its minty and it still glows a little under the UV light.
This is slightly more purple and slightly darker in real life