problem solved!

culprit: busted bulb - broken dim/low beam filament coil

solution: Philips XP 12V 60/55W 4300K (same specs as the original stock)
added features: 80% more bright and 25 meters distance reach as indicated in the box, replaced both to know its good features and life span
cost: 1,600 including installation (can DIY but free)
store: c3 sny research thru OL but bought at the store

thanks for this site and to all those who shared their inputs, cheers