Here you have this only 'by clicking' and should as far as possible do not look directly into the very brightly lit lamps there. The magnet is very strong and has good adhesion to any metal surface, regardless of the location. I chose the color red, with a blue Rundumlich falls is determined on, but certainly not only pleasant ...
In short: for internal and external security is one the Warnblinleuchte (not only) in any vehicle!