It was reported that a patient returned with a burn a period of time after completion of a medical procedure in which 3 overlapping stryker visum led lights were used.Additional plastic surgery was needed to address the burn.In the stryker user manual, use of no more than two lights overlapping is recommended.During design, the temperature of surfaces lighted by our surgical light is considered through total irradiance measurements.Stryker led lights are compliant with iec60601-2-41, the medical electrical safety standard that describes the basic safety and essential performance of surgical lights and verified by a third party facility.This standard requires that: the total irradiance of a single light does not exceed 1000w/m2.As explained in our user manual, based on laboratory testing, the visum led light measures at less than or equal to 550 w/m2.The ratio of irradiance and illuminance shall not exceed 6mw/m2*lux as explained in our user manual, based on laboratory testing, the visum led light measured at less than or equal to 3.3mw/m2*lux.Additionally, the lights were tested on site and exhibited normal characteristics of visum led lights.The root case is the overlapping of more than two lights, which is off label use.
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