Great useful lighting for your garden, street, aisle etc...     charged by free sunlight and light in dark when people near!!     sensitive motion sensor , save energy !     Green power, Green lighting     Metal body, never fade     100% waterproof and heatproof.   Specification:     1.       Solar panel: 0.55W, 17% efficiency     2.       Li-ion battery: 3.7V 800mAh     3.       Switch inside for saving power during shipment     4.       LED: 16pcs, SMD 3528     5.       Lumens: 100lm     6.       LED span life: 50,000Hrs     7.       Solar charging time: 8Hrs     8.       Lighting mode: Dark/DIM/bright, DIM: weak lighting for saving power; Bright: motion activate for lighting     9.       Auto identify day or night     10.   Protect function: Over charging, over discharging, over current, short circuit     11.   Advantage for electronic:     a)         Constant voltage 4.2V charging type     b)        Input current limited     c)        Output current limited     d)        Backflow current proof for solar cell     e)         High efficiency     f)         Famous brand component: MURATA, PANASONIC, ST, TOSHIBA, ETC     12.   Li-ion battery span life: 500 circles     13.   solar panel span life: more than 5 years 14.   power consumption: 50uA PIR information: distance: 5m, angle: 120