Philips X-Treme Power. Same wattage (power) so your electrics are fine 80% more light. WHITER than normal
Osram NightBreaker. Same wattage (see above) 90% more light. £1 less than Philips WHITER than normal
For "Blue" tinted (actually closer to propper white) try Philips "Blue Vision"
Buy any of them from here....
http://www.powerbulbs.com/
And oh yes- it's "H4" fitment you want.
Garry
