Our 12v freezer has UL energy-saving certification, which consumes very low energy. You could choose ECO mode for energy-saving or MAX mode for fast cooling.Our car portable fridge average energy ...

Our 12v freezer has UL energy-saving certification, which consumes very low energy. You could choose ECO mode for energy-saving or MAX mode for fast cooling.Our car portable fridge average energy ...

A couple of decades ago camping was not nearly as optioned up as it is today. Rooftop tents were the province of the hardcore ...

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

稳压值12V以下的贴片稳压二极管12V，用MF47万用表直接丈量其稳压值。 丈量办法是：将万用表置于“R×10k”挡，红表笔（表内电池负极）接稳压二极管正极，黑表笔（表内电池正极）接稳压二极管负极，如图1-1所示。 【图1-1】直接丈量稳压值 由于MF47万用表内”R ...

Here’s how it works. Good refrigerator sales can be tricky to find, especially when you're searching for deals on some of the best refrigerators. Fortunately, we're here to help. We're rounding ...

Barbara Alpern Engel is Distinguished Professor Emerita of History at the University of Colorado, USA. She is the author of numerous books, including Russia in World History (2015; with Janet Martin), ...

The VEVOR 12 Volt 58 Quart Dual Zone Portable Refrigerator is now available for $159.99 at Amazon, down from its typical ...

Here’s how it works. The most important element of any refrigerator is that it keeps food at a stable and chilled temperature and offers accurate settings for precise control. And along with ...

利用自耦变压器，输入-输出电压可以超出集成电路(IC)规格限制的范围。 图1所示电路用一个内置MOSFET开关管的DC-DC转换器将12V电压转变成-12V电压，输出电流可达200mA。该IC由于采用CMOS工艺，具有高效率、低静态电流(最大120µA)的特点，但也将输入至输出间的最高 ...

Our fridge freezer reviews are based on our own independent tests. We test harder in the lab so you can choose the right fridge freezer when you shop.

We concentrated on inflators that plug into the 12V socket. They’re more bulky and fiddly to use than some cordless units, but they never run out of power. We timed how long it took to inflate ...