356's sold in Europe were delivered with headlights featuring an outer lens which focused the lights. The bulb is placed in the back of the reflector which can be either an incandescent bulb or an H-4 quartz bulb -- quartz gives the best light.

Bulbs for these Euro Lights - P45T base:

• 6V Tungsten -- 900 631 009 90
• 6V Quartz -- NLA 631 201 91
• 12V Tungsten -- SIC P45 12V
• 12V Quartz -- NLA 631 202 91