P21W 24V 7511 ( brake, smernik,... ), Osram DIADEM® lamps have the most advanced interference coating. The surface of DIADEM® lamps therefore has an opal appearance. The lamp only appears amber when it flashes. This design effect is ideal for all signal lights with clear covers.
Great service thanks a lot for your great service,
i did not wrote in advance because i was busy...
goods arrived soon and in perfect conditions,
thanks again,
g.s....