1080P Bullet POE IP Camera, 2.8MM-12MM Varifocal Lens,SV-B11VPOE-1080P

评论

发表评论

此博客中的热门博文

What are the consequences of using a poor quality power supply?

What are the consequences of using a poor quality power supply?  Mobile phone accessories wholesale  manufacturers tell you the answer A power source is a device that provides electrical energy and plays a key role in the product equipment that needs to be powered. At present, there are few well-known brands of power supplies, and most of the cheap and inferior power supplies are flooding the market. What are the consequences of poor quality power? Because the power is insufficient, the power supply is always overloaded, which shortens the power supply life; 2, does not play a protective role on the product, easy to burn the product equipment; 3. Because it is necessary to ensure low prices, capacitor resistors and the like can be cheaper and cheaper, and the repair rate is high; 4. Respond to the harsh power environment, the power supply has poor resistance to wide voltage, and frequent bad power supply.
阅读全文

7 bad habits that damage cell phone battery life

图片
1, overnight charging Play the phone before going to sleep at night, then plug in the power to charge, get up in the morning to disconnect the power, this is the charging habit of many users. Although the mobile phone circuit has a protection mechanism, the application APP in the mobile phone consumes power at any time, and the power consumption is recharged, and the entire communication is repeated. The loss of the mobile phone battery is related to the number of times of charging, which will affect the life of the battery. It is best to turn off the phone, or turn off all apps to charge. 2, frequent charging As the author said at the beginning, charging anywhere and anytime has become a habit of mobile phone users, but frequent charging and plugging of data lines, for some smart phones with port modules for independent boards is damaged, long-term Use will damage the cell phone battery . 3, exhausted power is charging In order to reduce the number o...
阅读全文

Phone charger stability and convenience

When we buy goods, most of them will consider what brand, quality, price and so on. In fact, the purchase of the phone charger is the same, everyone will carefully consider what brand, stability, convenience, etc. before the purchase, but after use, all the shortcomings will be ignored, just use it, unless it is really not used Will only consider changing. The following Jin Xinyu power supply will discuss the convenience and stability of the phone charger. stability Phone chargers are mostly in the same stability, based on the performance of overcurrent protection, EMI radiation, voltage deviation, ripple suppression, cross load, timing, dynamic testing, etc., to determine whether the phone charger can be stable for a long time. run.   Depending on the environment, the data will behave differently and the stability will not be the same. For example, our domestic mains voltage is 220V, and the mains voltages such as Japan, the United States, and Canada are 110V. The stab...
阅读全文