Taken from my
Seat Ibiza handbook.
Rear light bulbs
Fog light...................................................12V / 21W (H3)
Indicator light............................................12V / 21W
Brake light / rear light..................................P21 / 5W
Number plate light......................................12V / 5W
Reversing light...........................................12V / 21W
Simple main headlight bulbs
Main / dipped beam...................................12V 60/55W (H4)
Inicator light............................................12V / 21W
Parking light.............................................12V / 5W (501 - W5W)
Side indicators..........................................12V.WY / 5W
Worth making this a sticky with so many people asking about it.
Good luck
Alpha