The power consumption of the two is different. Generally, LED lights will save more power. Most of their power consumption is about one-third of that of ordinary lights. For example, a 15W LED is equivalent to a 40W ordinary light. The light-emitting principles of the two are different. Ordinary lamps first convert electrical energy into heat energy and finally into light energy. Compared with ordinary lamps, LEDs skip the step of converting into heat energy and directly convert them into light energy. LED lights use direct current, and many products can also adjust the brightness. Ordinary lamps use alternating current and cannot adjust the brightness.

1. When purchasing lamps, you should first look at the product packaging. Usually, the information on the packaging of good products is clear and complete, and there are national 3C certification marks. Some products have also passed the certification of CE, ETL and other countries. When purchasing, you should carefully observe whether the bulb is cracked and whether its joints will be loose and tilted. You can also try the product to check whether the product relationship is dazzling. After the lamp is turned on for half an hour, we can touch the lampshade to see if it will be very hot. If it is very hot, it means that the product does not dissipate heat well.

2. When purchasing LED lamps, you should also pay attention to the brands of lamps, capacitors and chips. If we are very unfamiliar with these brands, we can search the Internet to find out the quality of the brand's product reputation. You can also ask the merchant for the test report, the color rendering index, color temperature, light efficiency and other related information of the product. Usually, the color rendering index of qualified lamps will not be lower than 80.