Frankly speaking, I think the neon light at the detailing shop does help a lot but during daytime it's still shinny........
That's the trick of the car detailer to have a ceiling full of neon lights......good thing is that with lots of lights, car detailers can see much easier while they're doing their job and also the car owner will be mesmerized with the light illusion.......
By the way, I got the P21S from
www.autogeek.com
Make sure that you get the car care kit, it saves you lots of money.
Swissol and Zaino are great as well but they are more expensive.....
Woods