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Now that incandescent bulbs are on the way out, LED bulbs are a clear choice, but there are things to keep in mind when buying them. Originally hailing from Troy, Ohio, Ry Crist is a writer ...

欢迎加入EEWorld参考设计群，也许能碰到搞同一个设计的小伙伴，群聊设计经验和难点。 入群方式：微信搜索“helloeeworld”或者扫描二维码，备注：参考设计，即可被拉入群。 另外，如您在下载此设计遇到问题，也可以微信添加“helloeeworld”及时沟通。

You might be on top of scheduling oil changes or tire rotations, but when’s the last time you thought about your car’s 12-volt battery? Like most other wear items on your vehicle, automotive batteries ...

Take a look at the best sat navs to buy now We also judged the chargers on their design and how neatly they fitted into 12v car sockets. Points were awarded if there was a handy LED status ...