Main specifications of Double Arm Solar LED Street Light-JNSSL-030L: Solar module power: Poly 180Wp. Working voltage: 24VDC. Storage battery: 100AH/24V highly reliable and maintenance free lead-acid battery. Light source: 30W*2 LED lamp. 60W on ground brightness 28LUX in 8 meter height. Control system: 10A/24V solar light special micro computer intelligent controller. Working temperature: -30 degrees to 75 degrees. Lighting time: 10 hours/day Pole height: 6m, hot galvanization spraying-plastic, color depends on customer order. Continuously rainy days: 3 days backup. Solar panel life: 25 years. LED lamps life spam: 50,000 hours.