How to distinguish between Ozone and Ozone-free according to the bulb outlooking?

How to distinguish between Ozone and Ozone-free according to the bulb/tube outlooking?

Actually, there is a simple way to find the difference(find the symbol O3).

Example as below:

Or, try to find the printed "Ozone". Example as below:

 

2 comments

pkyixwfxuc

Muchas gracias. ?Como puedo iniciar sesion?

spcczcdviy

Muchas gracias. ?Como puedo iniciar sesion?

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