Options available..... 12 volt 3 watt  (35.6mm long, 7.5mm diameter) Lucas 256 12 volt 3 watt (measurements to follow please contact) 12 volt 6 watt (38mm long, 11mm diameter) Lucas 254 12 volt 5 watt (42mm long, 11mm diameter) Lucas 258 12 volt 10 watt  (45mm long, 15mm diameter) Lucas 267A 12 volt 15 watt (45mm long, 15mm diameter) Lucas 267 (used in Marchal Lamps?) 12 volt 21 watt (43mm x 15mm diameter) Lucas 273 (used in Marchal Lamps?) Suitable for some trafficator, semiphore arms and interior lights Bulbs sold singularly, packaging may differ to picture. Quantity can be changed in the shopping cart