I am about to mount a pair of Cibie 175 Fog lights on my pickup and need to buy the H2 bulbs. Narva has both 55 watt and 100 watt bulbs. I'm sure there would be shorter life on the 100 watt bulbs but I would rarely have the fogs on so that wouldn't concern me. Are there other down sides to the 100 watt bulbs? (I have heavy gauge wires and relays.)