Genuine OEM LED headlight with Lo 16W and Hi 13W LEDs is having same light output on road as Philips/Photum 23W/25W (each Hi/Lo beam) setup.
LED fog light with only 4.5W LED in each is having much stronger light throw than 35W halogen/25W LED bulb in reflector housing.
Means light output is all about how it is projected on road and not how much it consumes power.