Inside all electronic products with solar cells, there must be a small brain. The brain is called SUN POWER MANAGEMENT®. If you want to make sure that your solar product works, even under the worst conditions, select SUN POWER MANAGEMENT®. The quality is top notch and the chip was developed under Danish weather conditions. This means that the system is taken into account for both situations with very little light and the conditions where it is exposed to excessive moisture and water. It is the core of products that Factor 3 is making.