Solar street light control shape global solar analysis how to configure the most

Below we give a concrete example 1, LED lights, single-channel, 40 w, 24 v system; 2, the local average effective illumination in 4 h calculation; 3, 10 hours daily discharge time, 7 PM - morning 5 PM, for example) 4, meet the continuous rainy days (5 days Plus the rainy night before

let's take a concrete example 1. Single channel, 40 w, 24 v system of led lamp; 2. Daily effective illumination calculation in 4 h. 3. Discharge time for 10 hours a day, At 7:00 p. m. . . At 5:00, for example) 4, encounter a rainy day 5 consecutive days, Combined with the rain of the night, 6 days) 。 Current = 40 wddivide. 24V =1. 67 Ann computing batteries = 1. 67 a times; 10 times; ( 5 + 1) Day = 1. 67 times; 60 h = 100 AH to battery charging and discharging set aside 20% of capacity; Street light of the actual current is higher than 2 a ( Plus 20%) Loss, including the constant current source, line loss, etc. ) Actual need = = 100 ah battery plus 20% retention capacity and the loss of 20%. 100 ah frequency division; 80%; 120% = 150 ah utility for 24 v / 150 ah battery, need two set of the 12 v battery, a total of 300 ah. Calculate the panels: 1. 40 w led lamp, current: 1. 67 2. Discharge time for 10 hours a day, At 7:00 p. m. . . At 5:00, for example) 3, panels set aside at least 20% 4. Local average intensity of illumination by 4 h WPdivide17 effectively. 4 v = ( 1. 67 times; 10 times; 120%) In addition to; 4 hour power = 87 w, in fact, constant current source and total loss of about 20% of line loss panels practice demand = 87; 120% = 104 panels of the practical need 24 v / 104 w, so I need two pieces of 12 v panels, total power of 208 w in this era of price confusion, choose lamps and lanterns, like choose the computer. It is better than expensive. Because cheap, so it's a good deal. There is still a need to know price. Shandong solar technology development co. , LTD. , always pay attention to product quality, and perseverance. The quality is the life of the enterprise. At the same time, we have been focused on research and development of new products and listen to the opinions of the customers, which made us in market competition continue to grow stronger. ； Quality first, reputation first, customer first; This is our consistent goal; To the quality strives for the survival, to management efficiency; Is our enterprise creed, we wholeheartedly for the general new old customers with the best service. Welcome general customers come to order, ordering hotline 17368065577