This SCHOTT ColdVision MC-LS LED Light Source, cool white 5400K was developed for stereo microscopy. The design of the light engine makes it suitable for desktop usage, where its USB port can easily connect to applications software systems.Color Temperature- 5400K cool white.Luminous Flux- Up to 8502 lm light flux.Max Active Light Guide Ø- 13mmVoltage- 100~240V, 50/60HzLight Box- Continuous dimming, fan cooling, temperature monitoring for protection of the LED light engine, high resistance to vibration and shock.Analog and Digital Remote Control- USB, RS-232, 9-pin connector.Light Box Dimensions / Weight- 158mm x 145mm x 98mm (6.2in x 5.7in x 3.9in), 2kg (4.62 lb)Certifications- ETL Approved, RoHS compliant.Warranty- 2 years