[BIS Certified - Made In India Bulb]: Quality compliant with Indian Standards, BIS certified. [How The Bulb Works]: IFITech IFIDNSL-5W Dusk to Dawn LED Bulb comes In-built day-night sensor, It will detect the light intensity and turns on the bulb automatically at dusk and turns it off when it's dawn, which saves you the trouble of manual controls. [Easy Installation]: Simple screw into any B22 standard Indian light holder, No any wire or additional sensors required. [Eye-Friendly Light]: Designed to reduce eye strain, IFITech Dusk to Dawn bulb meet stringent Eye Comfort standards for flicker, strobe, glare, color rendition, and dimming effect. [Energy Saving & Long Life Bulb]: Save on energy costs with IFITech Dusk to Dawn LED bulbs, which use a fraction of the power of traditional bulbs, significantly lowering your electricity bills over time. [Touch free Operation- Auto ON/OFF]: IFITech Dusk to Dawn bulb auto ON when it will detect the light intensity at dusk and turns off automatically when dawn, which saves you the trouble of manual controls. It is very convenient. Perfect for Porch, Garage, Courtyard, Garden, Street, Hallway, Restaurants or any other places where lighting is required.