At 04:48 AM 7/24/2002, Jeffrey R wrote:
>If I replace the stock style headlights on my 83 bus with Hella H4 7 inch
>round headlights, do I need to install a relay? The H4 bulbs are 55/60 watts
>(low beam/high beam).
>
>My fear is they will damage the light switch. I don't know exactly why they
>would--too much pwer running through the switch, maybe? I'm no electrician.
>
>I should also mention I have the hella H3 driving lights wired into the high
>beams with no relays.

The standard H4 bulbs don't draw any more power than the stock bulbs, so
you're no worse off than before.  *However* adding the driving lights means
that you're likely overloading the switch which is a known weak
point.  Relays will save the switch and give you better light.

Fire is not likely -- much more likely that the lights will suddenly go out
leaving you in the dark.

david

--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"