Product Name: LED Quartz UV 256nm UVC Germicidal UV Light Disinfection Sterilizer Lamp LED UV Lamp Model NO.: olks Certification: CE Material: Iron Specification: H7 Wavelength: UV-A Shape: Disc-shaped Usage: Industrial use, Home Origin: Shenzhen Product Description [product name] UV antivirus lamp type f[product model] hg-f-20w / 30W / 40W[color] black [control mode] manual remote control[rated power] 20W / 30W / 40W [rated voltage] 220V /[rated frequency] 50Hz [20W size] 39.5 * 6 * 24.2m[30W size] 50 * 6 * 24.2mm [40W size] 65 * 2 * 6 * 24.2m[irradiation area] within 20 ~ 80m2 [power line] 1.5m[timing mode] Electronic timing[remote control mode] 10 meter wireless through wall remote control [note] ozone type