Speed Ring, Series 900 for Norman LH4, 24, 54, 400, 500, 2000, 2400 4000, Illuminator 2500, Monostrobe, Norlite

For Norman LH2000, LH2400, 24, 400, 500, 54, 4, 4000, 400UV, Norlite Monostrobe, Illuminator Series, Norlite, Allure DP320, C1000 (DP and C1000 require Norman Adapter ring #R5009)