Scrambler Head light Bulb upgrade !

just wondering if anyone knows of a better head light bulb, cause riding in the dark really is riding in the dark on my local Derbyshire tracks, the stock head light just isn't enough light on the situation!.
Makes for a very uncomfortable feeling, anyone know of a good up grade bulb or lighting even thanks in advance

 

Thanks for that "The big lad" think i'll start with a bulb change and maybe a couple of spots in the future see how I go on, do you know where best to pick up the bulbs or just look on some thing like square deals on line shop like?

 

hi half ton, in town its no problem but its a problem when you leave the street lighting behind h4 is on the scrambler to Halogen 4, 60/55w 12v it just doesn't give out enough range to see ahead enough in nil street lighting you must like carrots lol!

 

cheers littleade