... max. 4.Trigger volume:70dB KA-SLH06 light control and sound control lamp holder specifications:1) Power source:220-240V/AC ... 10LUX), not be working in the daytime.3) Sound control function:Automatically turns light on when there is ... school, hall, office, basement, warehouses and houses etc.Energy efficient, economical, convenient, practical. light control and sound control lamp holder (KA-SLH06)