Ideal low light source: Its bright enough. Visible. Where they go in the dark. There are no other lights. But its not that bright. So they will go blind. Automatic lighting: Built-in intelligent light sensor. Automatically start when the ambient light is insufficient. Compact size: Plug into the white socket, while the compact size keeps the second socket idle. cost-effective: The cost of lighting is less than 20 cents per year. According to the service life of 12 hours per day and 0.11/kWh. Wont waste money. 100% satisfactory guarantee: Seriecozy prefers 45-day return right. 15-month replacement warranty. 12-hour quick email response and lifetime technical support. Dont worry about buying. There is no risk at all. If you have a problem. Please feel free to contact us. S7-1200 programmable controller