I was replacing a halogen spot light bulb earlier on and I spotted fair amount of charing on one of the upstairs floor beams which was very close to the light fixture. Damage can be seen in the picture. Upon further inspection I found 4 other light fixtures caused similar damages to the beams and insulation around them.
How can I make the fixtures safe? Changing halogen lights to led would reduce to amount of heat they produce but would that be enough? Moving them all could be a hard job since some of them is in awkward spots under tiled floors etc. 
These are the current type of bulb and fixtures
Best Answer
You can buy LED versions of these. Just put "gu10 led" in your favorite search engine. Typically, they'll use 3 to 7 watts. No way this will char anything.
But they are a bit expensive (on the flip-side they never burn).