It's definately the wrong bulb. The high beam does not go on. The highbeam indicator on the dash reacts to the wrong wattage/whatever by lighting up (not sure exactly how it works, not much of an electrical egeneer). However you are risking frying your headlight socket. They tend to melt in a situation like this. However on my old car I had wrong bulbs installed and ran them for some time with no damage. I wouldn't risk it again though.