Short Explanation:
About a year ago I bought namely a so-called "black light bulb" in a hardware store ... and was just disappointed. :( That was not at all black light, but just blue / painted purple.
In contrast, this bulb is (and this even an energy-saving lamp ^^) just great !!!
This is definitely a Schwarzlichlampe and not igendsoeine pseudo-light.
Really great! :)
I'm excited!