JL-301A Brass Bulb Socket Lamp Holder with photocell

The photoelectric switch JL-301A applicable to control the street lighting, garden lighting, passage lighting and doorway lighting automatically in accordance with the ambient natural lighting level. Feature 1. 3-30s time delay. 2. Provides Temperature compensated system. 3. Convenient and easy to install. 4. Avoid mis-operation due to spotlight or lightning during the night time. Tips Operation of this switch is not affected by weather, moisture or temperature changes.