And no, not in the lighting industry...just spent a lot of time trying to improve on a pair of 6054 sealed beams and learned a lot doing so.
One note -- while upgrading bulbs, upgrade your reflectors first. DOT was designed to throw light upwards to illuminate street signs, but it creates glare for oncoming drivers and less road illumination for you.
European reflector designs (E-code) put all the light on the road, allowing a stronger beam with less glare. Not legal in the U.S. (Canada accepts both DOT and E-code) but anecdotally, police in most states won't complain about a superior beam pattern. Just don't drive like an idiot and give them a reason to check.
A good reflector will get the most out of your bulb. A better quality bulb will get the most out of your reflector.
Osram and Philips +30 and +50% bulbs are at the top of the game. They're both DOT, but because they're designed to work best in an E-code housing with more carefully defined beam patters they work better than a standard bulb even in a DOT housing.
One note -- while upgrading bulbs, upgrade your reflectors first. DOT was designed to throw light upwards to illuminate street signs, but it creates glare for oncoming drivers and less road illumination for you.
European reflector designs (E-code) put all the light on the road, allowing a stronger beam with less glare. Not legal in the U.S. (Canada accepts both DOT and E-code) but anecdotally, police in most states won't complain about a superior beam pattern. Just don't drive like an idiot and give them a reason to check.
A good reflector will get the most out of your bulb. A better quality bulb will get the most out of your reflector.
Osram and Philips +30 and +50% bulbs are at the top of the game. They're both DOT, but because they're designed to work best in an E-code housing with more carefully defined beam patters they work better than a standard bulb even in a DOT housing.