10,000 fc Projection Light - SL-10K

Projection Light Source

Westar’s SL-10K is an LED-based projection light source used for sunlight readability testing. The SL-10K is designed to meet the diffuse reflection requirements of both MIL-L-85762A and MIL-HDBK-87213.



10,000 foot-candle, temperature stabilized, LED light source

Designed to output greater than 10,000 fc of illumination and is temperature stabilized to provide steady illumination

Measure sunlight readability

Designed to meet the diffuse reflection requirements of both MIL-L-85762A and MIL-HDBK-87213

Remote Interface

USB Serial command interface for lamp control


Product testing for quality assurance and quality control

High Ambient Contrast Ratio measurements of avionics displays, automotive displays, and digital signage for QA/QC

Product R&D and engineering

LCD and OLED sunlight readability measurements for R&D and engineering.


Westar TRD-200 Response Time Detector Diagram
Light Source
TypeTemperature stabilized LED light source
Radiated intensityAdjustable to > 10,000 fc
Illuminated Spot30mm - 50mm (typical)
Working Distance10” - 15” (typical)
Lamp Life> 50,000 hours
L x W x H11.12" x 3.55" x3.55"
Lens Center to Base2.3"
Power and Communication
Power12VDC, 5A
Remote InterfaceUSB serial command interface

Ordering Information

The standard SL-10K includes:

  • SL-10K Projection Light Source
  • USB Cable
  • AC Power Adapter

If you can’t find what you are looking for, contact us for info on SL-10K options and accessories.

Want to find out more?

If you are interested in more information, send us an inquiry.