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4" LED Ring Light White with Barrel Mount

Stock #66-779
Qty 1
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Note: This item requires accessories for use | Learn More
Diameter (mm):
Illumination Mode:
Dimensions (mm):
100 Dia x 33.8 T
Inner Diameter (mm):
Height (mm):
Number of LEDs:
Number of Channels:
Working Distance (inches):
Field Coverage (mm):
43.18 (1.7 inches)
Light Distribution (%):
±10 edge to edge (dependent on working distance)
Operating Temperature (°C):
0 to 65
LED Lifetime (hours):
Maximum Trigger Frequency (Hz):
Mounting Threads:
M4 x 4
Barrel Mount
Advanced Illumination
Model Number:
Ring Light
Type of Illumination:
LED Illuminator

Regulatory Compliance

RoHS 2015:

Product Family Description

  • 4" Working Distance
  • Provides 1.7" Coverage
  • Variable Intensity and Strobed Options

Advanced Illumination Standard Working Distance LED Ring Lights are designed to be mounted on the front of many standard imaging lenses using our Ring Light Filter Thread Adapters. Mounting brackets are included for easy system integration. LED intensity can be varied using the in line potentiometer.

Note: Required 24V power supply #66-855. Manual Intensity Adjustment #86-887 and #89-555 are optional and sold separately (not compatible with 85mm diameter models) – these are potentiometers and may not provide the appropriate level of intensity control for low current LED lights.

The strobed models' flash duration is dependent on a trigger signal or potentiometer setting. The duration of the strobe can be adjusted from 30 - 300μs via a knob located in the back of the unit. Trigger input signal is CMOS/TTL compatible. The maximum trigger frequency is 30Hz.

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