The ss-250d with 250ws flash power is a flash unit which is very suitable for fitting up a small studio or passport photograph corner and because of its compact size and the light weight it is also very convenient for use on location. you can easily replace the flash tube yourself. this studio flash can be adjusted very accurately from 1/16 up to full power. the intergrated slave reciever makes it possible to use the studio flash in combination with more studio flashes. the guide number for this flash is 32. The studio flash is packed in a full color box and comes with all the necessary cables. there are various optional accessories available for these ss flash units, such as a barn door set, snoot, color filters, honeycomb and soft boxes in different sizes (see "optional accessories"). When you want to see all accessories which are available for this studioflash, please click here.