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A comprehensive selection of incandescent bulbs (and some polular halogen alternatives) for vintage and early classic applications - SBC/SCC BA15, Bosch BA20D, Marchal BA21, British Pre-focus P36D, MCC BA9S, BAY15, LES, MES and Festoon base types. Please open the Help & Instructions tab below for some period information on original bulb types, part numbers and vehcicle applications.
Summary bulb part number and type information from 1939 and 1945 to 1960 Lucas Product Catalogues. Bulb part numbers by application (Headlamp, side, Tail etc.) with Voltage, Wattage, Contact, Cap and Filament information. Illustrations of filament and Bulb types to relate to data tables. Explanation of relevant abbreviations - also used on this site. Supercession information.
Summary bulb part number and specification information from the comprehensive 1952 Lucas bulb guide. Clear identification of part number supercession, with bulb listing by application (Headlamp, side, Tail etc.) with Voltage, Wattage, Contact, Cap and Filament information. Illustrations of Bulb types in relation to part number and explanation of relevant abbreviations. Also interesting application data by vehicle make for popular cars, motorcycles and commercial vehicles of the early post War period.
12V bulb rated at 21/5W, SMALL (19mm) diameter clear glass bulb - suitable for lamps where space is constrained. BAY15D offset pin double contact base. Double transverse filament. Applications...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 12 | Incandescent | Clear | Stop & Tail |
6V bulb rated at 21/5W with BA15D double contact base and clear 25mm diameter globe. Double transverse filament. For small (19mm) globe version please see part number B3214A. For LED options...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
SBC BA15D | 6 | Incandescent | Clear | Stop & Tail |
12V bulb rated at 21/5W with BA15D double contact base and clear 25mm diameter globe. Double transverse filament. See part number B3212A for small (19mm) globe variant for applications where space...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
SBC BA15D | 12 | Incandescent | Clear | Stop & Tail |
6V bulb rated at 18/5W, double transverse filament, double contact BAY15D offset pin base. 25mm diameter globe. For a small globe verions (19mm diameter) please see B3214B. For LED options please...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 6 | Incandescent | Clear | Stop & Tail |
6V bulb rated at 21/5W, double transverse filament, double contact BAY15D offset pin base. 25mm diameter globe. E marked. For a heavy duty version of this bulb please see B384HD. For 18/5W...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 6 | Incandescent | Clear | Stop & Tail |
6V bulb rated at 21/5W, double transverse filament, double contact BAY15D offset pin base. 25mm diameter globe. Heavy Duty specification. E marked. For LED options please see B384LEDW, B384LEDWW...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 6 | 21/5 | Incandescent | Clear | Stop & Tail |
12V bulb rated at 21/5W, BAY15D offset pin double contact base, 25mm globe diameter. Double transverse filament. E marked. Applications include stop & tail and side light & indicator....
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 12 | Incandescent | Clear | Stop & Tail |
12V bulb rated at 21/5W, BAY15D offset pin double contact base, 19mm (SMALL) globe diameter. Double transverse filament. E marked. Applications include stop & tail and side light &...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 12 | Incandescent | Clear | Stop & Tail |
12V bulb rated at 21/5W, BAY15D offset pin double contact base, 25mm globe diameter. Double transverse filament. Heavy Duty Long Life Specification. E marked. 49mm total bulb height. Applications...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 12 | Incandescent | Clear | Stop & Tail |
12V RED bulb rated at 21/5W, BAY15D offset pin double contact base, 25mm globe diameter. Double transverse filament. E marked. 48mm total bulb height, 15mm diameter cap. For a red LED version of...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
OSP BAY15D | 12 | Incandescent | Red | Stop & Tail |
12V bulb rated at 45W, 40mm diameter clear globe, 60mm total bulb height. BA21S single contact 3 pin Marchal type base. Single transverse filament. For a yellow version of this bulb please see...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21S | 12 | Incandescent | Clear | Head, Spot & Fog |
12V Yellow bulb rated at 45W, 40mm diameter yellow globe, 60mm total bulb height. BA21S single contact 3 pin Marchal type base. Single transverse filament.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21S | 12 | Incandescent | Yellow | Head, Spot & Fog |
6V bulb rated at 45/40W, 40mm diameter clear globe, 60mm total bulb height. BA21D double contact 3 pin Marchal type base. Double filament. For a yellow version of this bulb please see B5912BY. For...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21D | 6 | Incandescent | Clear | Headlamp |
6V Yellow bulb rated at 45/40W, 40mm diameter yellow glass, 60mm total bulb height. BA21D double contact 3 pin Marchal type base. Double filament. For an LED option, please see part numbers...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21D | 6 | Incandescent | Yellow | Headlamp |
12V bulb rated at 45/40W, 40mm diameter clear globe, 60mm total bulb height. BA21D double contact, 3 pin Marchal type base. Double filament. Headlamp application. For a yellow version of this...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21D | 12 | Incandescent | Clear | Headlamp |
12V Yellow bulb rated at 45/40W, 40mm diameter yellow globe, 60mm total bulb height. BA21D double contact 3 pin Marchal type base. Double filament. For 6, 12 and 24V LED options, please see...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BA21D | 12 | Incandescent | Yellow | Headlamp |
12V bulb rated at 1.5W with LES E5 single contact screw base. 5mm clear tubular glass diameter
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
LES E5 | 12 | Incandescent | Clear | Instrument & Panel |
6V bulb rated at 0.6W, 11mm diameter glass globe (G11). MES E10 single contact screw base.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
MES E10 T10 | 6 | 0.6 | Incandescent | Clear | Instrument & Panel |
6V bulb rated at 3W with MES E10 screw base. 11mm clear globe diameter (G11). For an LED option please see B990BLEDWW.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
MES E10 G11 | 6 | Incandescent | Clear | Instrument & Panel |
6V bulb rated at 3W, MES single contact screw cap base, 15mm diameter globe (G15).
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
MES E10 G15 | 6 | 3 | Incandescent | Clear | Instrument & Panel |
12V bulb rated at 2.2W with MES E10 screw base. 11mm clear globe diameter (G11) suitable for small switches e.g. SPB120. Instrument panel/ignition warning light application. For an LED option,...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
MES E10 G11 | 12 | Incandescent | Clear | Instrument & Panel |
24V bulb rated at 2.8W with MES E10 screw base. 15mm clear globe diameter (G15).
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
MES E10 G15 | 24 | Incandescent | Clear | Instrument & Panel |
6V bulb rated at 35W. BA20S single contact base. Clear glass 35mm diameter. Single transverse filament.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20S | 6 | Incandescent | Clear | Head, Spot & Fog |
12V bulb rated at 35W, Bosch type BA20S Single contact base. Single transverse filament
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20S | 12 | Incandescent | Clear | Head, Spot & Fog |
12V bulb rated at 48W, Bosch type BA20S Single contact base. Single axial filament. 38mm diameter globe. Please see part number B96T, 45W bulb with transverse filament as an alternative.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20S | 12 | Incandescent | Clear | Head, Spot & Fog |
12V bulb rated at 45W, Bosch type BA20S single contact base. Single transverse filament.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20S | 12 | Incandescent | Clear | Head, Spot & Fog |
12V bulb rated at 45W. BA20D double contact base. Single transverse filament. Clear glass 35mm diameter. 20mm diameter cap. 66mm total bulb height. Note - diagram including for base and overall...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 45 | Incandescent | Clear | Headlamp |
24V bulb rated at 50W. BA20S single contact base. Clear globe 35mm diameter
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20S | 24 | 50 | Incandescent | Clear | Head, Spot & Fog |
6V bulb rated at 20/20W, double contact BA20D base. Double filament. 35mm glass diameter.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | 20/20 | Incandescent | Clear | Headlamp |
6V bulb rated at 25/25W, Bosch type BA20D double contact base. Double Filament - Transverse and Axial. E marked. For brighter incandescent versions please see part number B393 at...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | 25/25 | Incandescent | Clear | Headlamp |
6V bulb rated at 25/25W, Bosch type BA20D double contact base. Double Filament - Transverse and V. Clear glass. Narva. E marked.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | Incandescent | Clear | Headlamp |
6V bulb rated at 25/25W, Bosch type BA20D double contact base. Double Filament - Transverse and V. Yellow glass. E marked.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | 25/25 | Incandescent | Yellow | Headlamp |
6V bulb rated at 35/35W, Bosch type BA20D double contact base. Double Filament - Transverse and axial. For brighter incandescent versions please see part number BT527 at 45/40W. For...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | 35/35 | Incandescent | Clear | Headlamp |
6V bulb rated at 35/35W, Bosch type BA20D double contact base. Double Filament - Transverse and V. Narva. E marked
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | Incandescent | Clear | Headlamp |
6V Halogen bulb rated at 35/35W, Bosch type BA20D double contact base. Double Filament - Transverse and Axial. E marked
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | Halogen | Clear | Headlamp |
6V bulb rated at 45/40W. BA20D double contact base. Double filament. Clear glass 35mm diameter.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 6 | Incandescent | Clear | Headlamp |
12V bulb rated at 25/25W. BA20D double contact base. Double filament. Clear glass 35mm diameter. E marked
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 25/25 | Incandescent | Clear | Headlamp |
12V bulb rated at 25/25W. BA20D double contact base. Double filament. Clear glass 35mm diameter. (No tabs). E marked.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 25/25 | Incandescent | Clear | Headlamp |
12V bulb rated at 35/35W. BA20D double contact base. Clear glass 35mm diameter. E marked. For brighter incandescent versions please see part numbers B396/B396B at 45/40W...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 35/35 | Incandescent | Clear | Headlamp |
12V bulb rated at 35/35W. BA20D double contact base. Double filament. No tabs. Clear glass, 35mm diameter. Narva. E marked
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 35/35 | Incandescent | Clear | Headlamp |
12V Halogen bulb rated at 35/35W. BA20D double contact base. Tubular glass 14mm diameter. Off Road Use Only.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | Halogen | Clear | Headlamp |
12V bulb rated at 35/35W. BA20D double contact base. Double filament. No tabs. Yellow glass, 35mm diameter. E marked.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 35/35 | Incandescent | Yellow | Headlamp |
12V bulb rated at 45/40W. BA20D double contact base. Double filament. No tabs. Clear glass 35mm diameter. For a halogen alternative, please see part number B395BH. For LED versions,...
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | Incandescent | Clear | Headlamp |
12V bulb rated at 45/40W. BA20D double contact base. Double filament. No tabs. Clear glass 35mm diameter. Narva brand.
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | Incandescent | Clear | Headlamp |
12V bulb rated at 45/40W. BA20D double contact base. Double filament. No tabs. Yellow glass, 35mm diameter
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 12 | 45/40 | Incandescent | Yellow | Headlamp |
24V bulb rated at 35/35W. BA20D double contact base. Double filament. Clear glass 35mm diameter
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 24 | 35/35 | Incandescent | Clear | Headlamp |
24V bulb rated at 45/40W. BA20D double contact base. Double filament. Clear glass 35mm diameter
Base | Volts | Watts/Amps | Element | Colour | Application |
---|---|---|---|---|---|
BOSCH BA20D | 24 | Incandescent | Clear | Headlamp |