Features: BQ25504 is specially for low power and energy collection systems. The typical power consumption is only a few microwatts, and it can work efficiently in extremely low lighting conditions. Intelligent MPPT algorithm can automatically optimized the output power of solar cells according to environmental changes, ensuring energy under different lighting conditions, and improve energy collection efficiency. The module is equipped with standard pin, which is convenient for users to access and quickly, greatly reducing the complexity of development and improving the experience. Bq25504 use semiconductor materials to ensure that it still have good reliability under high temperature and harsh environment, and it is more competitive than other products on the market. Among home devices, bq25504 can provide energy for various control module, and promote the sustainable development of home automation. Specifications: Size:Approx.31x29.5mm/1.22x1.66inch Package Includes: 1Pc BQ25504 Energy Harvesting Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.