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Welcome. My name is ***** ***** would be glad to assist.
The bulbs you now have in the fixtures are MR16 bulbs.
The GU10 nor Par lamps will not work in this fixture.
You will just find the type of bulb wanted, and get the it in the MR16 style, which fits.
CLICK HERE for a sample of bulbs that work
I did not find where Philips had these MR16 in the Hue line, but will search some more
Will be glad to find other sources, just let me know
In order to know any possible changes to the fixtures, must first have the make and model number of the existing ones.
There are hundreds of fixtures, so need to know what is in place.
The picture appears that maybe you have recessed cans, in which case you would just replace the trims, but the make and model will confirm.
The way those are designed, you would have to replace that pigtail with the bulb socket on each one to the type you now wish to use.
Finding the pigtails may be difficult without the manufacturers model number which is required to be printed inside the housing.
You would unwire the existing ones , slide off the protective sleeve, then slide the sleeve on the new pigtail and then wire in the new ones.
Then you may have to also change the trims if using PAR lamps, but the GU10 should fit the ones you have now.
Click Here to see pigtail example for GU10