... employees,15000 square meter factory Product DescriptionAD22(LED)series of indicator is equally used LED shining chip as light source with long ... C, D, E, G, H, double color lamp, position indicator, shining buzzer and mini short indicator, as well as design shape of AD22 ... (2)Insulated resistance≥ 2MΩ (3)Voltage wave allowed by AC indicator± 20% (4)Continual working life≥ 30000h (5)Brightness≥ 60CD/ ...