If you can, get hold of some Osram (Sylvania) Hyper H7 lamps (not the blue coated ones though)
They used an H9 capsule on an H7 base so run at 2,100 lumens and only draw 65watts so will be safe on existing wiring loom. Normal H7 lamps only give out up to 1,700 lumens.
If you can't, fit Philips Extreme 90%. I have tried them all and settled on this one until I can get either my GTA Xenons fitted or a pair of the above Osrams.
Hey Roberto, where did you get this information on the Osram H7s? The H9 filament and envelope is a high beam installation as it doesn't have the black cap on the end of the envelope to prevent direct filament light causing glare. It does indeed run @ 65W (73Wmax) and is rated @ 2100lm @ 13.2V.
However if Osram have fitted this envelope to an H7 base and are marketing it as an H7 then it will still have to comply with the requirements of an H7 ie 1600lm @ 13.2V, 55W nominal power, and have the cap put on the end of the envelope.
It is entirely possible they have indeed used the H9 filament/ envelope technology in an updated H7 but it will still have to comply with the legal performance requirements of the H7, however they are more likely to have used an up-rated H11 filament/ envelope as this is the equivalent low beam bulb. It will still most likely perform much better than previous versions due to the better manufacturing tolerances that Osram have been able to achieve with the H9/H11 bulbs (tighter filament turns, better positional accuracy etc).
isnt anything over 55w illegal
and for off road use only?
Not exactly, high beam bulbs are rated @ 65W. It is illegal to use any bulbs that do not comply with the requirements detailed in UNECE Reg37. If you have a look at the link below, you will see that it specifies the nominal wattage and lumen output for all approved bulb types. This means that the use of any filament bulb not in Reg 37 is illegal as is the use of any Reg37 listed bulb that doesn't comply with the performance requirements that are listed. Hence an H7 running @ 65W is illegal but an H9 is legal. Anything running at much more than 75W is illegal full stop.
LEDs and HIDs are covered by separate regulations.