Mazda Miata NB8 early model headlights
H4 headlight bulb
The lenses in the case of the NB headlights are plastic. By the degradation over time they become dim and yellowish.
It is better to exchange them.
Maruha Motors Co., Ltd.
Ushizuma 2095-6, Aoi-Ward
421- 2106 Shizuoka city, Shizuoka prefecture