NASkeet
Samba Member
Joined: April 29, 2006
Photos: 1152
Location: South Benfleet, Essex, UK
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| H4 quartz-halogen and other headlamp bulb, P45t & P43t flange fittings |
Posted: Wed Mar 21, 2007 6:52 am Views: 1962
Rating: Not rated
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The majority of British & European specification, air-cooled VWs, upto at least the early-1980s, were equipped, with ordinary glass-enveloped, twin-filament, 45/40W headlamp bulbs, with P45t mounting flanges. The associated headlamp reflectors, incorporated a non-reflective bulb shield, to block any direct light from the bulb filament.
From as early as the mid-1970s, quartz-halogen, 60/55W, H4 bulbs, with P45t mounting flanges, have been available to substitute, into the ordinary non-H4 headlamp units, as I did in 1976, with my British specification, 1973 VW Type 2; resulting in vastly improved headlamp performance, on both main & dipped beams.
In 1989, I learned of 100/55W & 100/80W, P45t flanged H4 bulbs, of which I used the latter to further upgrade my headlamps; also upgrading the circuit with heavy-duty cable and two Hella 40A relays (one each, for main & dipped beams).
http://www.thesamba.com/vw/forum/album_page.php?pic_id=327515
Nowadays, these P45t flanged H4 bulbs, are known to be available in 60/55W, 100/55W, 100/80W & 130/90W power ratings.
Purpose-made, H4 headlamp units, fitted with 60/55W, P43t flanged, H4 bulbs, have also been available for VW-Audi cars, since at least the mid-1970s, but I didn't wish to incur the considerable expense in 1976, when my existing lamp units, were still in excellent condition. H4 bulbs have an integral black, opaque, filament shield, so the H4 headlamp units, do not feature a bulb shield, which is redundant.
Nowadays, the P43t flanged H4 bulbs, are known to be available in 60/55W, 100/55W, 100/80W, 130/90W & 160/100W power ratings. |
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