The Westcott Softbox 4x6 with Silver Interior is one of an enhanced line of modifiers that perform as admirably as their standard softboxes do, but are also fabricated with structural integrity that, as their 10-year warranty attests, is up to the challenge of years of use. Since longevity is key to the softbox's construction, Westcott uses solid steel rods and extended rod sleeves with reinforced pockets for a tight, smooth fit. Although not made specifically for hot lights, heavy-duty fabrics backed by double-layer heat-resistant technology allow the Softbox 4x6 to withstand up to 1000W. To support this type of use, tent-like vents are installed in the body of the modifier to dissipate heat. The shape and very large size of this softbox make it a great fit for large groups, ad campaigns, or large sets.