Automatic sound and light control detection for light on/off Durable and energy-saving High sensitivity, high light, low consumption Suitable for corridors, passages, stairs, gardens, yards, etc. Specification: Name: Sound and light control bulb Induction: sound and light control Connector type: E27 Detection range: 4-8M Detection angle: about 360 Power: 3W/5W/7W/9W/12W Voltage: AC220V Material: PC+ABS Color Rendering: 85 Life: >30000h working principle: 1. No matter how loud the sound is during the day, the lights won't work 2. When the light is insufficient, the light will turn on when there is a sound 3. The light will not work when there is no sound when the light is insufficient It is not bright during the day and can only work in a dark environment or at night