These are the latest generation of metal halide display lamps; also known a CDMT. CDM-T, CMH arcstream, power star and powerball. dependent on manufacturer.

they have all of the attributes of the compact metal halides but have greater " sparkle" which is maintained throughout their life.

They are very small and are mainly used on shop displays wall washing and spot lighting merchandise, there is no reason you cannot use the in a domestic setting but they do need dedicated light fittings and control gear.

They can be retrofitted into fitting using the standard compact metal halide to improve performance.

There is a substantial discount on boxes of 10 lamps.