The RL127 is characterized as a large, high-dispersion bright-field ring light. Non-lensed LEDs disperse light at wide angles, providing “soft” lighting for applications that require short- to medium-range working distances. The low-profile design is only .75″ (19mm) thick, with an O.D. of 4.6″ (117mm) and I.D. of 2.61″ (66.3mm), allowing it to be used in space-constrained applications. The I.D. provides a standard 67mm diameter thread with a pitch of .75mm for further mounting flexibility. A wide variety of wavelengths are available from UV to IR. An optional polarizer and/or diffuser can further condition the light output. The RL127 delivers 20kLux at a working distance of 100mm.