I've just replaced the 10W G4 bulbs in the MH with 1.5W LEDs. These are supposed to be equivalent to 10W. I must admit they are disappointing. They appear to be only half the brightness of the original bulbs and I will certainly need to replace the reading spots and the ones over the cooker with higher power ones despite them being rated at 100 lumens. The ones in the washroom are ok. It always was a bit bright in there with 5 downlighters. Now I don't need dark glasses to go to the loo in the middle of the night! What have other funsters replaced theirs with?