电筒在白天充电后可能会产生几个小时的光。这些手电筒可以设计成耐冲击，防风雨和能漂浮。 其他型号包括诸如太阳能手机充电器（英语：Solar cell phone charger），AM / FM收音机或在紧急情况下要求帮助的警报器等功能。 一些型号包括手摇发电机在夜间充电 ...

Perovskite is a new type of solar cell that can outperform the silicon-based cells found in most of today’s solar panels in ...

Philips reckons it has got the answer, which comes in the form of the Philips GO 6000 Series. These headphones use a solar ...

From batteryless Bluetooth keyboards to solar-charging beach parasols, here are some cool gadgets spotted at CES 2025. Here ...

Content is created by CNN Underscored’s team of editors who work independently from the CNN newsroom. When you buy through ...

But when your electricity does go out, having a personal portable power station can help you keep your phone on and the space ...

Cell-phone Chargers in Purses and Bags 01:40 You don't want your cell-phone battery to run out of juice when you're on the go. All kinds of devices promise to give your phone a boost, even some ...

Anker unveiled a 140W wall charger at the CES 2025 having four charging ports placed underside and a built-in display to ...

Passivation is a technology that covers defects on the surface of a solar cell, while cell efficiency refers to the percentage of solar energy hitting a device that is converted into usable ...

Solar cell efficiency increases to 15.3% by correcting distortions on the surface of ... Cool Roofs Could Have Saved Lives During London's Hottest Summer, Say Researchers Oct. 1, 2024 — As many ...

Solar cells are devices for converting sunlight into electricity. Their primary element is often a semiconductor which absorbs light to produce carriers of electrical charge. An applied electric ...