30w solar street lamps are the best selling on market, their powerful impact lumens are extraudinary. can cover 3600sft on a 8 meter pole. suggested installation of height 7 -8 mtrs. solar panel capacity 5V/90W, Panel size :33in x 26 1/2in, Baterry capacity 3.2V/120Ah.Equipped with nishia japan LEDS, life time 18years. Lamp size : 33in x 11in x 3in. This lamp comes with everything separately ,you have to assemble but at the end you will not regret. super powerful pure sun shine power.deep impact to ground. excellet for schools, streets, city parking lots, commercial buildings. warranty 4 years.