I replaced my Philips racing halogen bulbs a while ago, which are enhanced and were 1,500 lumens. From the measurement I made, I didn't see much difference in lumens, but they have a better color. However, the mentioned lumens are not accurate at all.

I bought the bulbs for the large staircase, as I travel at night on rural roads with no lighting at all. I went to an electrician to install them and adjust the headlights, costing 50 euros (including installation of bulbs for fog lights). The bulbs worked perfectly the first night, really good lighting. On the second day, the passenger's lamp only lights up at 10%... the fan works fine, but it just doesn't emit light, it just flickers like a candle. I went back to the electrician and he told me it's defective. I'm leaving for vacation in 5 days and I managed to be left without lights... Whatever warranty they have, you still have to wait for inspection and reports and then reorder, it's basically useless, because if you use the car daily, you either put back your old bulbs if you still have them, or buy new ones.

It is plug n' play and they fit very easily into my Versys. Very good lighting for bulbs with installation on a factory base. They are worth their money (at 48 euros).