This paint glows in daylight (and is visible) but this effect is intensified under UV and black light. You can decorate rooms but it can also be used to paint paper (just like classic water colours).
For the best effects a white foundation should be used. The different colours (water-based) can be mixed and by adding water the desired viscosity can be achieved. Tools etc. can be easily cleaned with water and soap.
IMPORTANT: This paint is visible in daylight (neon colours) and lights up in blacklight (UV light). It doesn't light up by itself without a blacklight lamp.