PJU Two in one Solar Power is a product that combines a lithium battery, solar charge controller and LED street light in one product without solar panels. Two in one lamps are now often used for home lighting, street lighting, advertising traffic, interior / exterior buildings. This lamp has different advantages from other systems, because for this model lamp uses a GPRS / Signal system like cell phones, so we can monitor the condition of the lights using a PC / Laptop without having to go to the location, is that simple? For further information, please contact the number in our company. Our company also sells other products besides this product.