For those who don't know them, they are a smaller version of the PAR 38 - usually 75 watts in old money. They are similar to an RO 80. But shorter so don't stick out of the housing so much and give a tighter beam.
Need the closest I can get in LED. Tried an ordinary RO 80 LED, but that sticks out to far - and also puts too much light out to the sides.
Bit of Googling shows they vary enormously in price.