Parameters: Voltage:220V Product Type:AD16-22SM Color:Green/Yellow/Red Relative humidity:98% Installation category: III level Operating Temperature:-25C ~ + 55C Power frequency withstand voltage:2.5KW AC, 1min Insulation resistance:more than 2 megohms Comparative Tracking Index:CTI greater than or equal to 100 Brightness: greater than or equal 75mcd High brightness:greater than or equal 150mcd Allow voltage fluctuations:Ue 48V or less when allowing fluctuations of plus or minus 5%; Ue greater than 48V when allowing fluctuations of plus or minus 20% Size:6.9*2.5*2.2cm/2.72*0.98*0.87inch Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x LED Flash Alarm Indicator