FITTING LED HEAD & TAIL LIGHTS
Having been ‘caught short’
coming home from a late-running Winter club Run, I decided to bite the bullet
and fit a pair of LED headlights and rear tail lights to my Box. After
worrying over it for ages and asking umpteen questions of patient club members,
in the end it couldn’t have been easier.
HEADLIGHTS
1. Reflectors.
Decide that, if you’re going to fit new LEDs, you might as well fit new
reflectors. These come from Seven Workshop (01692407507). There are two
types – those with the side pilot light (pre-Ruby Boxes 1929/34 – part no. AE
0804A) and those without (Ruby-types 1935 – 1939 with separate side lights –
part no. AE 0804). Both come with filament bulbs and holders.
2. At this point, you
may wish just to stick with the brand new reflectors and bulbs, but I had
decided to fit LED bulbs.
3. Holders. The
reflectors come with new APF (American Pre-focus Fitting) holders (see photo) as
do the filament bulbs provided. So, order the reflectors first then ring the
LED supplier to get the right fitting. If you’re not changing your
reflectors, then you do need to tell the LED supplier which A7 bulb holder
you’ve got. There are good descriptions on their website, but I found a
phone call to be very quick, efficient and helpful.
4. Buying the LED bulbs.
Go to Classic Dynamo and Regulator Conversions website at
http://www.dynamoregulatorconversions.com/led-headlamp-bulbs-shop.php but
easiest by far is to ring them on 01522 703422. Start with the voltage (6
or 12v), positive or negative earth, holder type and then ‘dipping headlamp’.
5. Fitting the LED
bulbs. The LEDs are dippable so read the instructions carefully to see which way
you must fit the bulbs in the holders. The LED ‘bulb’, in fact, comprises two
tiny LEDs, one for ‘dip’ and one for the ‘main’ beam (although both come on
together for ‘main’). On mine, you fit them with the LED of the two
nearest the front of the bulb, uppermost. Unlike quartz halogen bulbs, you
can touch the bulbs directly. (See photo).
6. Wiring. The new
reflectors didn’t come with wiring details, so I had to experiment with the new,
coloured wires:
·
Pilot light: green and brown/white. Either one to earth or live, it
doesn’t matter
· Main
bulb: black = earth; red/white = main beam;
red/black = dip beam
Members who have had difficulty getting the LEDs to
work properly have found it is essential to have a good, separate earth up to
each bulb.
7. Cost. The new
reflectors from 7 Workshop cost £67.20 (pilot) or £58.80 (no pilot) for a pair
plus £6 postage. My pair of APF dipping LEDs from Classic Dynamo and Regulator
Conversions cost £62 incl. postage.
8. Charging Rate.
The LED bulbs use very little power. So I adjusted my third brush
(clockwise) to reduce the charge rate down to about 2 amps when all lights are
on at full revs. This then gives the maximum charge needed across the
whole range but there is no need, of course, to reduce the charge rate if you
don’t want to. There is an article on the club website on reducing the
dynamo output when no lights are on if you want to take this further, but I have
been operating the dynamo on full 8 amps for years without any ill-effects on
either myself or the battery.
9. Adjusting the beams.
With the increased brightness of the LED headlights, it is essential that the
beams are directed down more than before with filament bulbs to save dazzling
on-coming traffic. The light is not as focussed as with ‘normal’ bulbs and
has more scatter. However, with the increased output, bending the beams
down more isn’t a problem. One bonus, coming home along our dark lanes, is
that the dip beam remains on as well as the full beam so the edges of the road
are picked-out beautifully.
REAR LIGHTS
1. Fitting the
rear stop/tail lights was even easier. It is essential, though, to take
out
the bulbs to check on the holder type, especially whether they have parallel or
off-set pins, and their diameter (normally 15 mm). I was very surprised to
find that my ‘cotton reel’ stop/tail bulbs had parallel pins and it depends
which way round one fits them to get the correct light to operate. (See photo)
2. The LED bulbs come
with standard fittings so there’s no re-wiring – just push them in as with a
filament bulb.
3. Ordering:
Contact Classic Dynamo and Regulator Conversions as above having checked voltage
(6 or 12v), positive or negative earth, holder type and whether you need number
plate illumination as well as combined stop/tail or separate lights.
4. My pair of stop/tail
LEDs with number plate illumination cost £20 plus postage.
5. My ‘cotton reel’
lights had parallel pins, so I switched on the side lights before fitting the
bulbs. Then trial and error decided which way round the new LEDs had to be
pushed in.
TOTAL COST
Reflectors £67, Headlight LEDS £62, Stop/Tail LEDs £20 = £149 plus postage.
David Whetton DA7C