How to Use: Turn on the switch, complete the assembly, insert the crystal stick into the outdoor lawn, automatic charging during the day, automatic luminous at night. Specification: Item Type: Bubble Stick Lamp Weight: Approx.495g / 17.5oz Product Size: Assembly Height:Approx. 44.5cm / 17.5in Crystal Tube Diameter: Approx.1.7cm / 0.7in Built In Battery: 600mAh AA Ni Mh Battery (Included) Light Source: White Light Protection Level: IP65 Material: Stainless Steel + ABS + Acrylic Charging Time: 4-6h Working Hours: 8-12h Service Life: 20000h Package List: 1 x 1 to 5 Lights 1 x Manual 1 x Big Pin 5 x Little Pin 3 x Screw 3 x Expansion Pipe