Originally Posted by
natnat
this is absolutely correct and technically the popo can book the driver for using foggies in clear weather.
however, not many drivers are aware of this, some even drive at night with only foggies on and headlights off... this may look cool to some... but man, my old CL9 and current CU2 foggies hardly illuminate more than 5 meter ahead... this is kind of useless when you're doing 60 - 100 kph.
last year when i drove to Melb, left sydney at midnight, it rained the whole night, i found turning on or off the foggies did not make any difference on the highway.
foggies are meant to be used in thick fog while driving <40kph carefully..
in the past i had no name brand blue tinted bulb replacements for my foggies and somehow one of the bulbs lens exploded and created a mess inside the fog housing. had to take the whole fog lamp off and use vacuum and other things to clean all the mess. so, be careful with what bulb you choose :)