Drove some long distances at night and partly bad weather in France in recent months and have repeatedly left the road with these discounters bulbs to (despite further distance and toll) to drive on the motorway - the illumination of the road was so bad that my driving after a short time was too strenuous.
Having Osram Night Breaker used, I was first (in the town) a bit disappointed and could not make the brightness increase. Unlike long-haul on the French Road (same route as above). I would say: as different as day and night ;-). Excellent illumination of the road, significantly brighter than the bulb (below average bright long-life bulb) and, in principle, were 200 km road at night a breeze.
I am well aware that this light profit must be purchased at a reduced lamp life. For me, this is a zero sum game but economically, as I have already saved alone by the road through two sets lamps unpaid highway tolls' relaxed driving there for free.
I can of course say nothing about the life - but I have changed my behavior and turn on the light switch again manually and place the light automatic use after starting the engine, a - let's see if it helps.
Update: Have now the lamp at night drove in heavy rain - again, a very good illumination of the road. With the long-life bulbs I saw almost nothing in similar circumstances.
