Digi-Slave L-Ring 3200, Powerful, Versatile LED Ring Light with Focusing Light, Removable Diffuser, Continuous or Flash for Digital Macro Photography Digi-Slave L-Ring 3200 with "White Light" LED 32 oversized, super-bright Blue LEDs for maximum power * Larger inner diameter with 72mm thread can accommodate any lens size to 77mm Sizes other than 72mm require a stepping Ring Continuous light or flash