The low beam bulbs are a huge PITA.
The spring-clip is tricky and hard to reach and the low beam bulbs are always burning out for a lot of people.
(although I've had great luck with mine??)
You might want to stick with the regular wattage to hopefully get a more reliable bulb.
Use some dielectric grease on the terminals and you'll get more bulb life.
You might need new adaptors for the bulbs.
They get all burnt and crispy.
Be careful not to throw them out with your old bulbs...