If you can unscrew the heatsink, then you should be able to install them without the heatsink then you just fit the dust cap over the threaded part of the LED shaft after-which you can re-screw the heatsink on.
Does anyone have experience with the Philips LED bulb line?
First car: 1984 silver Nissan Micra
Current car: 2016 Gun Metallic Nissan Micra SV
Seems like they get pretty good reviews on eBay, but who knows for sure...
You should buy them and let the rest of us know how they are.
You could also check out the Canadian Philips site or the Canadian Philips store on Amazon.
The Cougar Moto ones that I've had installed since last March have been awesome - Easily the best LED headlights I've ever used and definitely worth a look IMO.