Solatube has blended the convenience of LEDs with the benefits and brightness of tubular daylighting devices. The Smart LED System harnesses the sun’s light during the day. As the light level begins to dim, smart sensors activate incorporated LED lighting. The combination saves up to 94% on lighting energy use, the maker says. An optional occupancy sensor activates the LEDs only when a low-light area is occupied. Each LED is designed to last an average of 20 years, so homeowners won’t have to worry about changing bulbs. Priced around $800 installed.