The R Space Lamp's body simply looks like a 3D R when it's closed ..but when it opens, it transforms itself into an elegant and stunning lamp emitting a delightful soft warm or cool white LED light (two light colour options) through this water and tear proof lantern made of Tyvek papers. The R Space Lamp is dimmable and can be controlled by the supplied smart remote control, so you can easily dim it, turn it off or on, or change the light colour as you wish. An internal 2500 mAh rechargeable battery makes it fully portable or it can be permanently plugged in with a 5V USB plug charging adapter such as a smart phone USB charger (not included) The R Space Lamp - design, but also art. Features Built in 2500 mAh rechargeable battery with USB charging cable Remote control or manual operation Dimmable Selectable colour light temperature: cool white (5000k) or warm white (2700k) Power: 4.5W Battery life: 8 hours at full brightness or 72 hours at minimum brightness Charging time: 3-4 hours Size when closed: Width 145mm, Depth 25mm, Height 250mm Size when opened: Width 290mm, Depth 290mm, Height 250mm