First, we need to observe major Cast light The workmanship of the mask and its luminous effect. This depends on how much light the bulb lamp shade emits to the light source. When viewing the mask, you can view its shape, whether the light transmittance and thickness of the bulb are the same, and check the approximate blur of the mask. We need to see if the material of the bulb is suitable for heat conduction. You can test in the field. After working for several minutes, observe whether there is odor above the bulb when the temperature rises. After that, we will also check the lamp body temperature after the power is turned off. The lower the temperature, the better. ordinary major Cast light It will change due to the change of ambient temperature. When selecting bulb lamp, you need to check its color temperature. Generally speaking, the color temperature should not be too high or too low as long as it can meet the normal household lighting needs.

At present, there are basically two kinds of sensors used for parking lot lighting. One is infrared sensor, which is relatively cheap. However, due to the height of the floor, the limitation of the metal tube and the influence of the radiation angle, the infrared sensor has a certain detection blind spot. The other is a microwave sensor, which can overcome the disadvantage of detecting corner blind areas, but the price is higher. These two sensors and major Cast light Combined, the lighting energy saving of the underground parking lot is effectively realized. When someone moves the car under the light, major Cast light It will run at full speed to meet the lighting demand. When there is no car and no car, the lamp is in a sleep state, and low power lighting of about 3W is maintained to maintain the required safety lighting. Low illumination, realizing energy saving of lighting.

1、 Disconnection. For "dead light", we should first determine major Cast light Is it short circuit or open circuit. 2、 The adhesive layer is peeled off. For some LED energy-saving project lights with vertical chips, the common reasons for dead lights are the peeling off of the bottom of the chip bonding layer and the peeling off of the bracket coating. 3、 The welding spot is burnt. In some cases, the dead light of the bulb may not be caused by the bulb itself, but also by the power supply used. 4、 Chip corrosion. The previous energy-saving floodlights and energy-saving floodlights are open circuit. The following is the condition of short circuit dead light. major Cast light There are many reasons for dead lights. Dead light may appear in every link from packaging, application to use.

1. Advocate the concept of environmental protection and recycling globally. Traditional lamps contain many harmful substances. If the bulb fails, harmful substances will volatilize into the atmosphere. But, Wuhan major Cast light It does not contain harmful substances at all and can protect the environment. Shandong LED ceiling lamp is recognized as a green lighting product in the 21st century. 2. Shandong LED mining lamp saves energy, has a long service life and saves maintenance costs. The power consumption of LED industrial and mining lamps in Shandong Province is generally less than one third of that of traditional lamps, and their service life is 10 times that of traditional lamps. It can be used for a long time without replacement, thus reducing the labor cost. 3， Wuhan major Cast light It can also protect eyesight. Traditional lamps use AC power, but Shandong LED industrial and mining lamps directly convert AC power to DC power without flickering, which can protect the eyes. 4. Shandong LED mining lamp has high efficiency and luminous efficiency.