Using new MH technology. This is the new breed of display light a powerful spotlight using only 35W The control gear is housed within the polished can unit to give a theatrical look. It provides bright white light vastley in excess of a halogen of many times the power rating. The CMH lamps used are rated for 5000 hours life. Please note these lights have a slow warm up time ( 3 mins ) and must be left off for 10 minutes before restarting. Unit measures 230mm long x 150mm diameter, the hasp is also 150mm from foot to centre fixing. Complete with Gel filter holder. The barn doors shown are an optional extra at £20 and made to order.