The Lucide Twilight Sensor LED Filament bulb is the perfect solution for when you wish to convert your existing outdoor lamp into a version with day / night controls. The bulb is equipped with a built-in twilight switch. This lux sensor or day / night switch automatically switches on the lamp in the evening, and switches it off again in the morning. Your outdoor lamp or garden fixture also gets a unique look thanks to the amber-colored glass and the visible, spiral-shaped filament of this LED light source. The extra warm white and diffused light creates functional mood light at the entrance of your home and creates the perfect mood in your garden. Practical, energy-saving and therefore a win-win for your wallet and the environment! The sensor is preprogrammed based on the following light levels: at twilight below 25 lux, the light source switches on, and at daylight above 30 lux, it automatically switches off.