Equipped with a fixed 8.5" reflector, the M90QCC accepts snoots, diffusers, gel holders, barndoors, and umbrellas for versatile light control. The M90Q can handle up to 1200 w/s; more flash power than the M90. It utilizes 3 25W model lights to allow a lower ambient light level that is more tolerable to subjects of your portraits. This model includes a color-corrected flashtube, which gives a slightly warmer tone of flash than a non-UV flash head. A power supply for this flash head is required.