Automatic on/off bulbs combine LED lighting, PIR motion detection, and daylight sensing to provide hands-free illumination while reducing unnecessary energy use. Available in B22 and E27 fittings, they automatically switch on when movement is detected in low-light conditions and turn off after inactivity. With 7W and 10W options, these bulbs are suitable for staircases, bathrooms, balconies, entrances, basements, and utility areas. Proper installation and clear sensor visibility.