[HarryD]

You need to disconnect each headlight from the lighting circuit and measure the amperage to each one (high and low) with an ammeter.

How are the relays wired? Do you have two relays (one relay for high beam, one for low beam) or four relays (one for each beam)? What is the wattage of the bulbs?

If you have one relay for the high beams and one for the lows, and standard bulbs, your current draw is as follows:

Low beam (55 watts each). total draw of two bulbs 110 watts --> 110/12 = 9.2 amps
High Beam (60 watts each). total draw of 2 bulbs 120 watts --> 120/12 = 10 amps

If you have 100 watt bulbs, total draw is 200 watts --> 200/12 = 16.7 amps.

Please let us know what you have installed.