ePhoto R-640 LED Video 18 Inch Ring Light Measurement
The R-640 claims to use high quality LED bulbs, and our tests with the AlliedScientific Lighting Passport LED Light Meter showed excellent results. Tested at a distance of 3 Feet the R640 delivered a CRI rating of 95 / over 1670 LUX [155 FC] / and a color temp of 5400K. Not just a unique form factor that will allow for creative use, but also a great light at a great price, and for more information. READ MORE HERE