We've just learned of a significant USA design win for the patented Sol Chip Pak™ (SCP-R2801) Power Modules to control LED lighting fixtures. https://www.saelig.com/product/sol-chip-pak.htm
They offer 24/7 non-stop functionality by combining state-of-the-art solar cells, a rechargeable battery, and advanced power management circuitry. These power modules include all the components that are required to harvest energy from ambient light, charge a built-in rechargeable battery, and deliver a stable voltage to a load. Sol Chip’s patented technology integrates solar energy conversion with very large scale integration (VLSI) techniques to produce unique ambient light harvesting devices that can even extract energy from office lighting to provide constant power. These versatile boards, based on Sol Chip’s unique Saturn cells, provide power even in office light conditions.