Rosco’s Colorizers can be used to create beautiful multi-colored projection effects. Colored in gentle hues in one of three styles- stippled, featherlight, or free flow- Colorizers can be used alone or combined with a steel pattern for a more dramatic effect. Colorizers are recommended for use in fixtures up to 1000 watts and require the use of either a Glass Gobo Holder or the Universal Iris Slot Holder. Comes in Standard B Size. If you need another size, call 702-263-3858.