I'm OK, thanks. The following are opinions. I'm not an engineer but have been working with electronics and mechanical stuff for many years.
#1 Make sure the LED has a fan.
#2 Get the bulb with the shortest length from the base of the bulb where it fits into the reflector to the back of the fan.
#3 It has a warranty, minimum a year but more is better. I dealt with Holoon on Amazon. Amazon screwed up everything but Holoon bent over backwards to make things right.
#4 You don't have to use the same model bulb in both the high and low beam. Since the Low is on all the time you could use a lower power bulb in it if you have heat issues. I didn't do that and so far so good.
There is lots of space between the reflector and cover when the bulb is installed. Stuff the ballast and plug between the reflector and the lamp housing. That leaves a lot of room between the fan and the cover so air goes around the rear of the bulb and into the light housing.
Last but not least, just do it. It's not that expensive even if one burns out. Also the install is easy once you commit to just doing it. The difference in the amount of light is amazing. IMO the best bang for the buck light upgrade you can do.