下载 APKPure App
可在安卓获取Bottle of Light的历史版本
轻的瓶子，其应用程序通过的光升启发 - 了解如何把摊在阳光下
Bottle of Light, app inspired by Liter of Light - Learn how to bring daylight into your dark livingroom.
Liter of Light is an open source design for low-cost light tube. (Wikipedia) The light tube refracts solar light and provide daytime interior lighting.
In this app there is two versions of the Liter of Light: one with daylight and one with LED-light and solar panel.