Paul H Posted February 18, 2018 Report Share Posted February 18, 2018 Hi upgrading the electrics on my Vitesse MK2. Added relays for lights, horn, spots now fitting crystal headlamps. The 4 crystal lamp units came with H4 bulbs . I will probably upgrade to branded bulbs like Osram in due course. The outer bulbs are 3 tab and fitting H4. The inners are main beam and 2 tab and I need to purchase H7 Question . Can I use the supplied H4 bulbs for the inner headlamps ? Thanks in advance Paul NB found an H4 Osram Nightbreaker in the garage which was a spare for my Land Cruiser so will be able to carry out a test to compare with non branded bulbs Link to comment Share on other sites More sharing options...
Guest Posted February 18, 2018 Report Share Posted February 18, 2018 Hello Paul. No you cannot. The inner Vitesse run H1 single filament; whereas H4 run double for dip & main beam options. Additionally I believe there is also a MOT reg that deals with the inner light beam. Regards. Richard. Link to comment Share on other sites More sharing options...
Paul H Posted February 18, 2018 Author Report Share Posted February 18, 2018 Hi Richard , my inners are currently sealed beam , and the headlamp wiring is 3 tab as outer . Is this wiring correct ? Paul Link to comment Share on other sites More sharing options...
Guest Posted February 18, 2018 Report Share Posted February 18, 2018 Hello Paul. Mmmmmmm. It may be if the inners are sealed beam. I'm certain when I converted to halogens that the modification only required 2x wires for the inners: live & earth, the third wire switches between main & dip which can be dispensed with. The correct halogen conversion set-up is H4 outers and H1 inners. I will make some additional enquiries. Regards. Richard. Link to comment Share on other sites More sharing options...
Guest Posted February 18, 2018 Report Share Posted February 18, 2018 Hello Paul. Info lifted from a seller of Vitesse halogen conversions: The outer main beam and dip units come fitted with a 60/55w halogen 3 pin H4 bulb that is much brighter than the original sealed unit. The inner main beam only units come fitted with a 55w single pin H1 bulb and the base plate has an earth so your original 2 wire set up can still be used Hope the above assists ?? Regards. Richard. Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 19, 2018 Report Share Posted February 19, 2018 My Vit6 had main and dip on all 4 it passed MoT for more than 10 years , yes its not stricly legal for on road use it used be a max of 55 watts on dip or thereabouts, now modern lamps have so much stray light and glare its probably a nonsense rule these days But on mot they dont check the inners for dip only check it on main . Daft but very illuminating Pete 1 Link to comment Share on other sites More sharing options...
Paul H Posted February 19, 2018 Author Report Share Posted February 19, 2018 9 hours ago, Pete Lewis said: My Vit6 had main and dip on all 4 it passed MoT for more than 10 years , yes its not stricly legal for on road use it used be a max of 55 watts on dip or thereabouts, now modern lamps have so much stray light and glare its probably a nonsense rule these days But on mot they dont check the inners for dip only check it on main . Daft but very illuminating Pete Thanks for the advice on main and dip for all 4 lights , makes sense especially as I have the H4 bulbs , the connectors need modding on the inners to allow for the dip cable and then running another cable from the inners to the dip relay. I did have trouble fitting the crystal units to the inners until I remembered a comment you made about the lugs not lining up. Thanks again Paul Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 19, 2018 Report Share Posted February 19, 2018 I wouldnt say its good advice to break the rules its a personal preference, But why not add a lead to a dash switch to make the inner dip switchable then its now you see it now you dont on for night off for mot hows that idea ?? And yes those lugs nearly fit but not quite, , dont see why they dont comply with the std fittings . Pete Link to comment Share on other sites More sharing options...
Paul H Posted February 19, 2018 Author Report Share Posted February 19, 2018 3 minutes ago, Pete Lewis said: I wouldnt say its good advice to break the rules its a personal preference, But why not add a lead to a dash switch to make the inner dip switchable then its now you see it now you dont on for night off for mot hows that idea ?? And yes those lugs nearly fit but not quite, , dont see why they dont comply with the std fittings . Pete Hi Pete , I’ve already planned for a MOT switch ? Paul Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 19, 2018 Report Share Posted February 19, 2018 Brilliant Pete Link to comment Share on other sites More sharing options...
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