Our Company made a new solar operated knapsack pump. It hadanonymous advantage over the knapsack pump are available in themarket and some details are as followsbr/It has a br/Washablefilter br/Head light for night time operation. br/Approximately 8to 10 hours working capacity at day time &8 to10hour at nighttime. total 16 to 20 hours approx. daily working capacity. br/Noneed of external charging. br/16 litre capacitybr/My product detailis as follows br/ *12 V 7Ah Batterybr/ *12V DC Submersible Motorbr/*10W Solar penalbr/ *16 lit. tankbr/ *12 V LED Head lightbr