Broadcast and motion pictures want a big, beautiful broad source, they choose Chimera Quartz Banks. Available in three sizes. Made from our exclusive materials that withstand high temps from lights up to 12,000 watts. Use with rotating Chimera Circular Speed Rings that accommodate lights with front end sizes from 9 to 22 -7/8 inches (230 to 580 mm), Adjustable Speed Rings from 9 to 21-1/2 inches (230 to 545 mm) and Dedicated Speed Rings.