How to distinguish the true and false of the lamp?
We can look at the following aspects from the following aspects:
Material aspect
The bulbs of ordinary incandescent lamps are easily rusted by white iron. The lamps of better quality are generally made of aluminum alloy, which is not easy to rust.
Filament aspect
A good light fixture is a double tungsten wire, a bad one.
Brightness
For the lamp, if the lamp is a one-time powder coating, the brightness is uniform after power-on, and the difference is artificially powdered, and the brightness is uneven.
Price aspect
Don't just buy a light when buying a luminaire, because quality and price are definitely proportional
Certification aspect
It depends on the right 3C certification and its content is reviewed.
Old and new
Novel products may not be mature in technology. Do not choose the latest ones when purchasing, but ignore the old models.
Edit: Leo
Wireless Gaming Keyboard is a keyboard disk with no direct physical connection to the computer, through infrared or radio waves to send input information to a special receiver. Bluetooth devices, to be precise. The so-called Bluetooth technology, in fact, is a short-range radio technology, the use of "Bluetooth" technology, can effectively simplify the communication between mobile communication terminal devices such as palm computers, laptops and mobile phones.The so-called Bluetooth technology, in fact, is a short-range radio technology, the use of "Bluetooth" technology, can effectively simplify the communication between handheld computers, laptops, mobile phones and other mobile communication terminal devices, also can successfully simplify the above devices and the Internet communication between the Internet, Thus, the data transmission between these modern communication devices and the Internet becomes more rapid and efficient, which broadens the way for wireless communication. Bluetooth supports point-to-point and point-to-multipoint communication using a decentralized network structure, fast frequency hopping and short packet technology, and works in the 2.4ghz ISM (industrial, scientific, and medical) band used worldwide. Its data rate is 1Mbps. Time division duplex transmission scheme is used to realize full duplex transmission.
Now there is the latest technology 2.4G wireless keyboard and Wireless Gaming Mouse, what is 2.4G, it is actually a wireless transmission technology, 2.4G is on behalf of a data transmission rate, now on the market 2.4G wireless keyboard and mouse is a USB receiver, mini, general plugged in the computer, can be used directly.Bluetooth devices of any brand can be charged in up to three hours. You can usually power off by seeing the indicator on the keyboard change color or turn off. Charging a product for a long time can cause serious damage to it. If you're not using a wireless keyboard for a long time, it's best to charge your device once a month or so. In case its built-in battery goes dormant and cannot be recharged.
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