Bulbs
The standard bulbs are listed in this table, details of these and alternatives are listed in the next table. 12 Volt versions are in parenthesis.
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| Application | pre 1948 | 1949-50 | 1951-52 | 1953-58 |
| Headlamp | 168 (170LED/171) | 169 (170LED/171) | 312/312LED (410/414/414LED) | 312/312LED (410/414/414LED) |
| Pilot | 200 | 200 | 988 (112B / 112BLED) | 988 (112B / 112BLED) |
| Tail lamp, original | 205 | 205 | 205 | 384 (380) |
| Tail lamp, reproduction | 384 (380) | 384 (380) | 481 or 482 (482-12) | 384 (380) |
| Chronometric Speedometer | 293 (112B / 112BLED) | 293 (112B / 112BLED) | 293 (112B / 112BLED) | 293 (112B / 112BLED) |
| DC40 Panel Lamp | 200 | 200 | — | — |
| Charging bulb in SQ4 Ammeter | 998 | 998 | 998 |
Part No | Description | Model | Usual used over years |
PACK-START-004 | Bulb pack | A | All |
168 | Headlamp bulb, pre-pre-focus, 6 Volt, 24/24 Watt, N/A use 170 | DU42/MU42 | 1936-48 |
169 | Headlamp bulb, pre-pre-focus, 6 Volt, 30/30 Watt, N/A use 170 | SSU700P | 1949-50 |
170 / 170LED | Headlamp bulb, pre-pre-focus, 6 Volt, 36/36 Watt | Alternative | Pre 1951 |
171 | Headlamp bulb, pre-pre-focus, 12 Volt, 36/36 Watt | Alternative | Pre 1951 |
312 / 312LED | Headlamp bulb, pre-focus, 6 Volt, 30/24 Watt | SSU700P | 1951-58 |
414 / 414LED | Headlamp bulb, pre-focus, 12 Volt, 50/40 Watt | SSU700P | 1951-58 |
472 | Headlamp bulb, Halogen H4, 12 Volt, 60/55 Watt fits light unit 555,309A | ||
HB12 | Headlamp bulb, Duplo P45T fitting, 12V H4 Halogen 60/55W | ||
205 | Tail lamp bulb for original, not reproduction, lamps 6V 6W, parallel pins | MT110, 480 | 1924-52 |
481 | Tail lamp bulb for reproduction lamps with parallel pins, dual filament | 480 | 1951-52 |
482 | Tail lamp bulb for reproduction lamps with offset pins, dual filament | 480 | 1951-52 |
482-12 | Tail lamp bulb for reproduction lamps with offset pin, 12 Volt, dual filament | 480 | 1951-52 |
384 | Tail lamp bulb 6 Volt, 21/5 Watt, dual filament | 525, 564 | 1953-54 |
384 | Tail lamp bulb for reproduction lamps 6 Volt, 21/5 Watt, dual filament | MT110 | 1924-50 |
380 | Tail lamp bulb 12 Volt, 21/5 Watt, dual filament | As 384 | |
380LED | Tail lamp bulb LED 12 Volt, 21/5 Watt negative earth only, lasts forever and consumes minimal power, dual filament | As 384 | |
200 | Pilot bulb in headlamp 6 Volt, 3 Watt single centre contact | All | pre 1951 |
988 | Pilot bulb in headlamp 6 Volt, 3 Watt, single centre contact | SSU700P | 1951-58 |
293 | Pilot bulb, 6 Volt, 4 Watt, single centre contact | Alternative | 1951-58 |
990 | Pilot bulb, 6 Volt, 3 Watt MES (Miniature Edison Screw) | ||
1566 | Pilot bulb, useful for people ride with lights on all the time, 6V 8W | Alternative | 1951-58 |
281 | Pilot bulb, 12 Volt, 2 Watt, BA7S | ||
287 | Speedometer bulb, Chronometric speedometer, 6 Volt, 2 Watt | 1938-58 | |
293 | Speedometer bulb, Chronometric speedometer, 6 Volt, 4 Watt | Alternative | 1938-58 |
112B | Speedometer bulb, Chronometric speedometer, 12 Volt, 3 Watt | 1938-58 | |
200 | Panel lamp bulb (for DC40) 6 Volt, 3 Watt, single centre contact | DC40 | 1932-50 |
998 / 998LED | Ammeter charging lamp bulb 6V 0.1 ampere, MES | SQ 4 | 1951-58 |
106B | Instrument bulb ‘pinched base’, 6 Volt, 1.5 Watt | ||
117 | Instrument bulb, 6V, 3W wedge fitting bulb | ||
245 | Indicator, 12 Volt, 10 Watt, single centre contact | ||
317 | Indicator, 6 Volt, 18 Watt, single centre contact | ||
