http://tinyurl.com/6feypw7
Once when the bulb blew in your light and one had no replacement on hand, one could pop down to their store and for a few pence one could select an identical replacement straight away.
But what happens now? One is confronted by a multitude of different shapes, sizes, styles and wattage, lumens, ???????
There are long ones, round ones, large screw, small screw, bayonet, it's a mine field.
Yes we have got Europe to thank for this (who else).