<div dir="ltr">Sidelights in the headlamp are in fact pretty common on European lamps (back when lights were more like our cars). They're wired exactly as Randall notes -- as parking lights.<div><br></div><div>The tiny wattage from the sidelight bulb would make no difference to the main or dipped beam. They can be ignored when the real lights are on -- there's no real reason to have them turn off.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 24, 2018 at 9:02 PM, Randall <span dir="ltr"><<a href="mailto:TR3driver@ca.rr.com" target="_blank">TR3driver@ca.rr.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">> So I had to replace the headlights for the TR3a and got a set of these.<br>
> As you can see in the image they have a "sidelight" wired in the bowl.<br>
<br>
</span>My understanding is that they are normally used the same as what we call<br>
"parking lights", and hence normally wired into the tail light circuit. (red<br>
wire)<br>
<br>
But since your car already has side lights mounted in the grille, I suppose<br>
there is no reason you can't wire the new ones to be on whenever the<br>
ignition is on. Typically they only draw around 5 watts (less than 1 amp<br>
for both of them), so there is probably no need to turn them off when the<br>
headlights are on. But you could do that too if you want, by adding a relay<br>
operated by the headlight switch and using the NC contact to pass power from<br>
the ignition circuit (green wire) to the new side lights.<br>
<br>
-- Randall<br>
<span class=""><br>
<br>
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