The Umbrella - Silver - 4 ft. is a very useful and a good quality Umbrella by its manufacturer Profoto. Umbrellas soften, broaden, and diminish the light output of any tungsten or flash light source. Umbrellas with a white interior will soften and weaken light more than an umbrella with a silver lining. This is a Profoto large 4' diameter umbrella with a silver interior. An optional, separate umbrella bracket and stand are suggested, for optimum support when using it with your light fixture.