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Home > Microscopy > Microscopy accessories > Lighting > Ring lights > StarLight Opto-Electronics > RL4 > StarLight Opto-Electronics RL4-66-S4 A, segment., amber (590 nm), Ø 66mm

This product is no longer stocked and therefore cannot be purchased until further notice.

StarLight Opto-Electronics RL4-66-S4 A, segment., amber (590 nm), Ø 66mm

Product no.: 59043
Manufacturer: StarLight Opto-Electronics

$ 880.00

incl. VAT
StarLight Opto-Electronics RL4-66-S4 A,  segment.,  amber (590 nm), Ø 66mm
StarLight Opto-Electronics RL4-66-S4 A,  segment.,  amber (590 nm), Ø 66mm
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Product description:

Please note that this product desciption was translated by a computer. For more information please contact our english speaking customer service.

LED ring lights

A round thing in many sizes

Mini LED ring lights RL1 and RL2

The RL1 and RL2 miniature LED ring lights are ideal for use where space is limited, due to their compact size. Nevertheless, these ring lights provide a lot of light, eg for camera applications or as lighting for production machines. Both series are available with two different nominal working distances, which is achieved by different LED installation angles.

LED ring lights RL4 and RL5

The series RL4 and RL5 are primarily designed as reflected-light illumination for microscopy. The working range of the ring lights is selected so that the focus is at the typical distance of the objective and the stage from standard microscopes. Both series are available with two inner diameters, so that the right model is available for all common microscope types.

Power LED ring light RL12

The RL12 power LED ring light offers enormous brightness thanks to the twelve 3W LEDs and is suitable for applications with increased light requirements, eg in conjunction with high-speed cameras. Thanks to five different variants with different geometries, the perfect lighting is available for both small and large working distances.

LED segment ring light RL4-66-S4

LED ring light with 4 individually controllable segments in two color temperatures for lenses up to 66 mm.

The LED segment ring light RL4-66-S4 offers a high contrast and shadow-free, homogeneous incident light for demanding microscopy applications thanks to the 4 separately dimmable segments. The brightness of the segments can be continuously adjusted via a rotary knob on the table controller. A fifth knob on the controller is used to control the overall brightness of the LED ring light. The durable and bright LEDs are housed in a modern housing and are powered by a reliable electronics. A knurled screw allows the segmented ring light to be securely fastened to the microscope objective. Thanks to various accessories such as reducing rings for adjusting the inside diameter and protective and polarizing filters, the RL4-66-S4 can be optimally adapted to the specific microscopy application. Thus, the LED segment ring light RL4-66-S4, like all professional lighting solutions from StarLight, is characterized by high-quality materials, perfect workmanship and optimum usability.


  • RL4-66-S4 in selected color temperature
  • Table controller for controlling the individual segments and the overall brightness
  • Plug-in Power Supply (EU | UK | US)

Technical specifications:

photometric values ​​depending on the selected model

  • Number of LEDs 48
  • Illuminant 16 × LED 5 mm
  • Color temperature 6,500 K
  • Working distance 50 - 150 mm
  • Optimal working distance approx. 80 mm
  • Dimensions control (LxWxH) 161 mm × 78 mm × 45 mm
  • Thread M67 × 0.75
  • Length of cable approx. 0.8 m
  • Outer ring light 99 mm
  • Height ring light 25.5 mm
  • Inner diameter ring light 66 mm
  • Clamping Ø max. 66 mm
  • LED life 50,000 h (manufacturer)
  • Height 25 mm
  • Material anodized aluminum
  • Color titanium colors
  • Weight light control approx. 210 g
  • Weight ring light 230 g
  • Input power supply (EU | UK | US) 100 - 240 V AC, 50/60 Hz
  • Output power supply 24 V DC, 1000 mA
  • Cable length power supply approx. 1.4 m
  • Dimensions with packaging 320 mm × 205 mm × 95 mm
  • Weight with packaging 790 g
  • Pure-white light color
  • Max. Power consumption 8 W
  • Inside diameter 66 mm
  • Outer diameter 99 mm
  • Clamping diameter 66 mm
  • Internal thread M67 × 0.75
  • Weight control 190 g
  • Dimensions Packaging (L × W × H) 320 × 205 × 95 mm
  • Dimension Control (L × W × H) 161 × 78 × 45 mm

Light color amber (590 nm)

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