The H11 is a single emitter type design and cannot replace a dual emittier ( Hi/Lo ) H4 bulb type. You'd need a double headlight with seperate lo and hi beams. The H11 uses a P14. 5s type electrical connector and the H4 uses a P43t type connector.
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Used in “flip-up” lights, which fold out of the body of the vehicle, headlight closure relays are essential for headlight operation. This relay is located in your main fuse box or panel.27 Sept 2016