During one of the first public demonstrations of the "Bell Solar Battery" the device powered a small radio transmitter, carrying both speech and music.
最初的公开示范之一便是将一台小型无线电发射器装上“贝尔太阳能电池”，传送讲话与音乐。
2
It also offers a solar-powered fridge, a radio, an iPad and camping chairs and a portable table on request.
根据顾客的要求，它还可以提供太阳能电冰箱、收音机、苹果平板电脑、轻便折叠椅和便携桌子。 %。
3
The design of radio monitoring system for water level using power supplied by solar energy was introduced, and the solar-powered power management system was also described.