To halogens from sealed beams
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  1. #1
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    Skcollob is offline

    To halogens from sealed beams

    Thinking of doing the above, on the face of it seems nothing's needed as the wattage is the same. Yet I found the odd post saying to add relays..? Surely 60W is 60W. But then I'm electrically hopeless.. Are relays really needed?
    Thanks.

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    Administrator blackpopracing's Avatar
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    Bill,

    No, relay would only protect the switch?
    Go one further and fit HID conversion, only 36w and the power of a lighthouse! love mine!

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    Delinquent in denial... RockinRodder's Avatar
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    I changed to H4 halogens on my Mk1 Escort a few years ago and didn't fit relays. It's still on the original wiring and although it doesn't go out in the dark often, when the lights have been used there have been no problems.

    Matt
    That music is turnin' the kids into a bunch o' sex hungry, beer drinkin', road racin' werevolves...

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    Weslake-Monza is offline
    60W is 60W whether Tungsten or Halogen. The thing with Halogen is that it's tempting to go 80/60 or 100/80 or 130/100 or 160/100 and that's when you need a relay to protect the switch.

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    Rods 'n' Sods Junkie
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    JohnE is offline
    Done on numerous cars over the years without rewiring. 60w is 60w although from memory dip on sealed beam was 45 and it's 55 on H4s.
    In practice it's not as if they used thinner wire or weedier switches for the dip circuit vs main and 10w at 12v is just under an amp differnence anyway.

    I experimented with 80/100w bulbs too, but they weren't much brighter, didn't last as long and were annoying to poor souls coming the other way so I gave uo on 'em.

  8. #6
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    Weslake-Monza is offline
    I ran 100/80 on a standard switch without problems and did a reasonable amount of night driving. Now have 160/100 with a relay on the main beam only (Mmmm maybe time for a relay on the dipped....) but with thick wiring, and every car coming the other way dips first but never flashes me. Bullb life has been good. You can get blue-white xenon/whatever.

  9. #7
    Exceeded sell by date Plumpcars's Avatar
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    I use relays. On my 55 the previous owner had fitted halogens and changed nothing else. The switches are known to be a weak point on them and the wiring is also considered a resistance. First time I used it for any time in the dark the switch melted. Relays and new wiring and all is much brighter.
    This was a common mod on Jensen Interceptors as well as for many people upgrading older British cars. The Jensen switches were overloaded from the factory and prone to igniting.
    Adding relays is a doddle.

  10. #8
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    Yep easy to fit a relay,well easier than rewiring lol
    Also if your running a dynamo you might want to fit an alternator,otherwise your battery won't last long!!

  11. #9
    Official RnS Addict UK RUSS 1960 OLDS's Avatar
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    UK RUSS 1960 OLDS is offline
    Hi All,

    I personaly prefer to run things via relays especialy with older wiring and switches, it might not be necessary but it definately can't do any harm and many of the old yank headlight switches of the 50's and 60's can be border line/tempermental at the best of times.

    Cheers.

    Russ.

  12. #10
    Carburation 'sucks' Roscobbc's Avatar
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    Roscobbc is online now
    I went straight from 37.5 w tungsten sealed beam to new reflectors with Zenon upgrade bulb - same wattage as Halogen, 50% brighter AND EU compliant - can now 'compete' out there in the dark with current cars!

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