Well just about 10 years to the date had to replace a headlamp (replace both whenever you change one)

I chose Osrams Xenarc Nightbreaker D3S to replace the original Phillips xenecostart based on some YouTube reviews

Wouldn’t say twice as bright but certainly as good if not better than the original.

Would recommend verifying its only a bulb by swapping your remaining good bulb to opposite side to make sure the ballast is not the problem.

These bulbs have a code where you can go on Osram’s website and verify they are not knock-offs and mine were indeed authentic. Got them on Amazon for $184 for the pair

https://a.co/d/b4ybjRk
not a affiliate link

F-type specific instructions- remove the headlamps from the car, it would be painful to try to replace with them in place and risk damaging the bulb as you try to get it back in. Removing the headlamp will Save You Time. Undo headlamp electrical connection, Loosen the bumper fascia by removing four of the bolts holding it in place (two torx in the wheel well, two 10mm on the edge under the hood) gently peel fascia laterally to reveal one of the three 10mm bolt's holding the headlamp in place, lift and rotate the assembly laterally to remove, remove rubber dust cover, preserve the anti moisture packet stuck to the cap, push on the silver clasp then pull to remove the braided cable to the bulb, there are two black plastic wings that rotate to release the bulb which then wiggles straight out, some of the metal prongs holding the lamp in place may appear bent but they are not,they will look symmetrical comparing both sides, make sure the new bulb engages all the way into the prongs before twisting the black ring back in place. Check panel gaps before securing all bolts , do not over tighten as all connections are plastic tabs.

Can’t speak to longevity as just replaced.

 

So it's really bulb replacement, not headlamp replacement. Confusing subject line.