Image shows a Spectrum Illumination RL4


4" Red LED Ring Light

Spectrum Illumination RL4

$575.00 each

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84 Red LEDs
Built-in strobe controller
3 year limited warranty

This 4” ring light is usually mounted around a camera lens. It is used for bright-field illumination with shorter working distances.

Manufactured by Spectrum Illumination, this light has 84 LEDs in a heavy-duty enclosure. It features a built-in strobe controller, and may be connected directly to 24 VDC power. A 4-meter cable is included.

Please contact us if you're interested in a different diffuser material or a longer cable.


Type: Ring
Wavelength: 660 nm (Red)
Window: Standard Diffuser Window options: Thin film diffuser, white diffuser, or polarizer.
Window Width: 102 mm (4.0")
Window Height: 102 mm (4.0")
Optics: N/A
Power: 300 mA typical @ 24 VDC
Strobe: +5 to +24 VDC to enable
Cable Length: 4.0 m (13.1 ft) Optional 8, 15 and 30 meter standard cables; 4, 8, or 15 meter high-flex cables.