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Even if the night light is very convenient, it still has a certain impact on the human body. Because we ourselves are not suitable to turn on the lights when sleeping, because the body will secrete a kind of melatonin at night, and melatonin secretion is affected by light, the impact on the baby is particularly large. Not only that, the night light will also affect people's sleep quality to some extent, because when you close your eyes, even the very weak light source can feel it, so it is a bit difficult to fall asleep. However, if you must have a night light at night, you must choose the...
Date: 2018 - 05 - 10
LED lights do not light, mainly due to two reasons, one is the problem of the light source, and the other is the power supplyThe problem. At present, the light source of the LED lamp is composed of LED lamp beads. First of all, the power supply of the home is disconnected and turned on.Shade, if the amount of multimeter is LED light source is broken (lamp beads are generally connected in series), if it is, then lookLook at the style of the light source, go to Taobao to buy a same light source can be replaced, there is a called 1000 Han, accessories very complete, pay attention to the voltage r...
Date: 2018 - 05 - 09
1. The replacement of LED lamps with incandescent lamps is not simply measured by the number of W. For example, the same 10W LED lamp, some 800 lumens, and some more than 900 lumens. This is to understand the concept of "light efficiency", that is, how much lumens each W emits. 2. If the 40W incandescent lamp's luminous flux is 400 lumens, then according to the LED lamp's luminous efficiency of 80 lumens/watt, then the LED should be 400/80=5W.LED Lights Common Energy Saving Lamps Incandescent1W 3W 15W3W 8W 40W5W 15W 60W7W 20W 85W12W 35W 120W
Date: 2018 - 05 - 09
On February 23, 2018, the European Commission's Non-Food Rapid Alert System (RAPEX) issued a consumer warning to the Chinese manufacturer of "LIFE LIGHT LED" brand LED floodlights (early warning number: A12/0283/18). The country notified in this case is Hungary. The product notified this time is a gray LED spotlight, which is about 35 centimeters long. Both ends of the three-core double-insulated PVC power cable and the power cable are free. Carton packaging, carton packaging. The product model/model is LLR10W120CW. The bar code is 5999565 012137. The OECD Portal Category is 7800...
Date: 2018 - 05 - 05
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