I BOUGHT A LIGHTFORCE 170 EIGHT YEARS AGO AN STILL GOING NOW WITH NOT A PROBLEM APART FROM THE BULB IT HAS A SWITCH ON THE BACK .AN HONESTLY THEY HAVE GOT WORSE OVER THE YEARS I HAVE SEEN PLENTY DIE JUST WHEN YOU NEED THEM MOST . TO MUCH TO GO WRONG THINK THEY SHOULD JUST GO BACK TO MAKING A BASIC LAMP THATS RELIABLE .