Interfits stellar x tungsten heads have been built to full professional specifications with tough aluminium bodies designed to withstand the rigours of daily use the heads operate silently and stellar 500 watt lamps are colour balanced to 3200k this twin softbox kit is a good all round combination for soft portrait lighting fashion photography or where a gentle lighting effect is required please note the use of honeycomb grids colour gels and snoots is not recommended as these will short