As JV said, and in the same spirit When I first purchased my LED bulbs I did my best to measure the position and size of the LED chips vs the coiled filaments in the Halogen - there was very little difference and neither are point sources - no coiled filament lamp can ever be. In fact, shrinking LED technology has reached the level where it can actually be nearer than a coiled filament to being a point source. I agree that the law is the law, they are illegal etc. But I don't buy into the 'they are dangerous, the beam will be different, and you will dazzle everyone' claim. I think I will have to either declare the modification to my insurer and ask them to maintain my insurance or go for E-marked units (and declare the modification to my insurer and ask them to maintain my insurance) as dim yellow halogens isn't an option.