* Height: 6 ~ 9 m

* Solar energy cell plate: 120 ~ 240 WP

* Light source: 12 V, 15 W energy saving lamp

* LED high brightness: 3 W, 15 W

* Nonpolar lamp: 23 W, 40 W, 80 W

* Accumulator: Lead-acid maintenance free battery 12 V 65 AH - 200 AH

* Controller: Optically controlled, time controlled (1 ~ 12) hours on-off, over charge and over discharge, short circuit waterproof protection, high reliable design

* Work time: 5 - 7 days if sunshine, 3 - 5 days if continuous cloudy and rainy days

* Scope of application: Highway, bridge