1. Height: 4M, 6M, 7M, 8M, 9M, 10M, 12M
2. Solar Panel Module: With 2-3*80W Nanowin High Efficiency Thin Film Solar Module. The light absorption is excellent, even under cloudy day, it can provide enough power for the battery to store. (warranty: 25 years)
3. Battery: With Lead Acid battery. The life span of lead acid battery is about 2 years. (Warranty: 1 year). If with Nanowin lithium-phosphate battery (LiFePO4), the life span of battery can be up to more than 10 years. (warranty: 6 years)
4. The high efficient Sun Tree Street Light utilizes a two-stage constant current circuit(Patent No.: 200720033740.0), It can control luminance of high illuminance before (12 a. M. )and the low illuminance after midnight (0-6 a. M. ).
5. The battery is installed under the ground (Patented in China), it ensuring the battery to work under the same temperature as to expand life span of battery.
6. Bulbs: Low energy consumption and high brightness LED bulb*8
7. As the battery is fully charged, it is expected to last for about 8 days even under cloudy conditions. CIGS battery only requires two-hours of direct sunlight and can fully supply enough power for the street lights for the night.
9. The life span of LED is 10 to 20 years (warranty is 6 years).
10. Resisting wind power: 120KM/H (resist 12 degree wind), and it can increase to 250KM/H for special need.

