The Linkstar flash unit MT-250D with 250Ws flash power is an entry level model meant for the serious amateur photographer who wants to work with flash light. The flash power is stepless adjustable from 1/16 up to full power with a charging time of 1 up to 2.3 seconds on full power. The flash unit is equipped with a 50W model light and a slave sensor, both can be switched on or off. There are many accessories available that fit on the 9.5 cm neck such as softboxes, snoots, color filters et cetera, see: "Optional Accessories".