I own a Royal Enfield Bullet (std) 350cc 2013 uce model. The bike is fitted with a 35/35w HS1 PX43t halogen bulb. I want to replace it with a 60/55w halogen H4 bulb.
Earlier I had installed the self start motor on the bike so the battery has also been changed from 5Ah to 14Ah.
Do I need to install a relay, or rectifier and new wires? Will the H4 bulb fit in the existing holder? What are the other things I need to consider before installation? So that no harm is done to battery or electrical system.