This device consists of three parts: a purification system, solar panel, and pair of batteries. The purification system consists of a sediment filter and a 10W UV bulb controlled by an on-off switch. The UV light bulb is encased in a 2.5 inch diameter tube, through which the water flows. Water enters this tube through a funnel, first passing through the sediment filter, which removes dirt and particles greater than 0.625 mm. The sediment filter is a simple tea strainer that allows water but not particulate matter to flow through. Water then flows through the tube containing the UV light, where it is purified of harmful organic contaminants. After the water flows through the tube, it is output through an exit pipe with a valve, where the users can collect their clean water. The system is powered by two lead acid batteries, which are subsequently charged using a solar panel. A solar charge controller is used to determine when the battery needs to be charged by the solar panel and to prevent overcharging. A current inverter is used to convert the 12V from the battery to the 110V required by the UV bulb. A lead acid battery is used to power the purification system due to their relatively low cost and ability to withstand the higher temperatures necessary for a product staying in the sun all day.The solar panel is placed at an angle of 45 degrees from normal because this is the average of the most energy efficient angle for use throughout the year
