Product parameters: Solar Panel:Monocrystalline silicon Solar Panel Power: 5.5V, 0.55W Lithium Battery: 16850 1200mAh Lamp bead specifications: SMD2835 0.2W/PCS Color temperature: 6000-6500k :1600LM Installation Height: 2-3 Induction distance: 3-5m Power: 50W Working hours: 81 hours Applicable Place: Wall, Door, Stairs, Balcony, Courtyard, Garden,and so on Colour: Black : ABS+Monocrystalline silicon Working mode: 3 modes a.1 gear: closed state b.2 gear: after dark, it is always slightly bright c.3 gear: After dark, when people come to strong light, 15S will automatically become slightly brighter NOTE: 1:If you can not turn on the light when you receive the package , put it in a sunny place to charge 2: The light will only when the solar panel detects a dark environment, if you to test it, cover the solar panel. Package Contents: 4 x Solar Led Light Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.