single h4 to dual bulbs

Hello all. I'm working on a motorcycle project currently and I'd like to replace my existing H4 setup with dual LED units. I'd like to wire it up so that one comes on with the low beams and when i switch to the high beams, the 2nd one comes on as well (both on with the high beams). I don't know quite how to do this. Each LED is a 2 wire setup. Wiring it straight forward with one for low and one for high is easy, but I'd like the above option. Please help! I'd like to try to keep everything simple and if possible, not add a lot of extra components, as the wiring is hard to hide on this bike. Thanks a bunch!!

These are the bulbs: http://www.rigidindustries.com/Dually-2x2-LED-Lights-p/duallyled.htm They're going on a 2001 Spirit 750. Currently have a 55W HID in the stock housing. I don't need a relay for current protection as these only draw ~1 A each! Thanks again.

If both use relays, then a diode from the high-beam relay (coil or output) to the low beam coil. Or move the low beam circuit to the beam circuit so low is always on, then the hi-lo switch is simply and on-off for the high beam.