Fearlessly embrace the night with the CALM Light. This simple lighting solution can be easily installed without any need for an outlet and automatically lights up your space when the sun has set, while during the day it acts as an inconspicuous piece of home decor in your choice of walnut, maple, or cherry. The LED light source creates no heat and is powered by two AA batteries that can be recharged with a micro-USB cable. Winner of the 2015 Good Design Award.

About Twodo
It was the partnership of two engineers - Masahiko Shindo, an electrical engineer, and Kozo Ando, an architect - that lead to the creation of Twodo, the lighting brand of design company Shindo Denki Sekkei. The pair focuses on fashioning useful and beautiful objects that embody three concepts: "Simple, Warm and New."

Materials: Oil-finished natural wood, ABS, acrylic
Dimensions: L: 2.56” x W: 2.56” x H: .79”
Light source: LED (warm white, 2700K)
Power supply: Two built-in rechargeable AA batteries (can be replaced with commercially available AA batteries) 
Battery life: More than 1 month per charge (when lighting for 12 hours a day), with up to 2100 charges per set of built-in batteries
Katagami, Japan