1.New design 2.bright LED 3.cheap price 4.Energy Saving Height:3mLED power: 20W, 50,000 hours’ warranty Battery Bank: 12V/100Ah, 3 years warranty, 5 years’ lifespan Charge controller: 12V10A, 1 year warranty Running period: up to 10 hours per day. Solar panels: 25W*4, 10 years warranty. Lantern pole: quality steel, 20 years’ warranty High quality 8m 20w solar street lights