Rebaydo 1pc UVC LED 36 Watt Germicidal Sterilizer Lamp operates from 100-240VAC and uses 253.7nm UVC LEDs with a service life of up to 30,000 hours. The fixture allows selection of 3, 6, 9, or 12 operating LEDs and includes a 360-degree adjustable mounting bracket along with an internal cooling fan for dependable operation. Designed to sterilize areas approximately 20 to 40 square meters, it is suitable for living rooms, bedrooms, baby rooms, bathrooms, offices, hospitals, nursing homes, and similar indoor spaces. The unit is compatible with DMX controllers for external control and measures approximately 4.76 inches outer diameter, 3.92 inches inner diameter, and 3.51 inches deep. CE, RoHS, and FCC listed. Warning: Avoid exposure to direct or reflected germicidal ultraviolet rays. UVC radiation is hazardous to the eyes and skin and may cause severe eye injury, skin burns, and increase the risk of skin damage. Operate only in unoccupied areas and follow all applicable safety precautions.