Kr 90 ring light professional ring light with 30 three chip high performance leds the light intensity corresponds to that of a 30 watt fluorescent light extremely wide angle of radiation on 110 a rechargeable lithium ion battery and the complete circuitry are integrated in the main body made of highly durable duralumin the light can be dimmed down to 50 the basic connection thread is 77 mm several adapter rings from 55 to 72 mm are included an additional adapter plate optional allow