I've had the same experience. Those bulbs don't last long. I was reading the packages at Walmart and not surprisingly, the brighter and more expensive H7 bulbs have a much shorter life. I think one of the bulbs was rated for something like 70 hours. That would barely get you through a week of full day riding! I just use the 'Basic' H7 which has a longer life, costs less, and still works very well.