The Ice Light's color-correcting CTO hard gel can be used by itself or in tandem with the Ice Light's barn door system. This durable, hard plastic Westcott Tungsten Gel for Ice Light can be used to color-correct the Ice Light's original daylight balanced light output to a tungsten color temperature.Features: Quickly go from daylight to tungsten color temperatureDurable, hard plasticLightweight designCustom molded for Ice Light