Acerbis headlight hookup

Anyone put on an Acerbis headlight? I picked one up for my '99 WR 400 as a replacement and I'm not sure how to connect it. It has three prongs (flat and in a row) coming out of the back of the light. My WR only has a 2 wire plug. Do I just connect the two wires to the two outside prongs on the headlight? I assume the third is for a highbeam option. Any ideas? Thanks.

So you don't want to switch between high and low beam?

You should be able to put black from your bike to the black from the headlight, then the blue? (I think) from your bike to the other two wires coming from the headlight.

You mean split the blue wire to hook up to the other two prongs?

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