Flood lights are lamps designed to illuminate the illuminated surface higher than the surrounding environment. Also called spotlight. Generally, it can aim in any direction and has a structure that is not affected by climatic conditions. Mainly used in large-area operation fields, building outlines, stadiums, overpasses, monuments, parks and flower beds. Therefore, almost all large-area lighting fixtures used outdoors can be regarded as floodlights. The angle of the exiting beam of the flood light is wide and narrow, and the range of variation is between 0 ° and 180 °. Among them, the light beam is particularly narrow and is called a searchlight.

How to judge the quality of the flood light

 1. Look at the seal: if the waterproof is done well, it will not be easy to enter the water if the seal is done well, which means that the waterproof performance is good. Floodlights are used for rainproof and moisture-proof outdoor use. There is a safety hazard when they are immersed in water for a long time. It is recommended to use professional lamps in the water, such as underwater lamps and buried lamps. This package is tight.

2. Look at the material: The heat dissipation depends on the material. The aerospace polymer material is selected, which has excellent heat dissipation performance, high temperature resistance, electric shock resistance, and lighter weight. At present, the efficiency of high-power LEDs is limited, and most of the remaining energy is converted into thermal energy. If the thermal energy cannot be effectively discharged, it will directly affect the service life of the lamp, so heat dissipation is very important. When purchasing, be sure to choose a good heat sink!
 
3. Look at the process: The quality of the lamp is related to the power supply of the lamp, the light source and the sealing strip, the thickness of the cable, the use of thermally conductive silicone grease, and the worker's skill level (attentiveness, welding process). Anti-static clothing.

4. Look at the wattage: 100w Some lamp manufacturers can't make it so high, it may only be 50w or 75w, commonly known as 0.5w and 0.75 watts. To test the power, just buy a multimeter to actually measure it. The quality and size of the light source chip. In order to reduce costs and improve competitiveness, manufacturers use low quality and less than W lamp beads. Under the flicker of the seller, you can count the number of integrated lamp beads. There are so many chips in it, but the size is small and the brightness is very low. This is a phenomenon that people often say that there are two shortcomings, but there may be some consumers who cannot check it without professional tools.

5. Look at the power supply: It may be taken apart to look at the power supply. In order to save costs, some lamp manufacturers have not added a waterproof epoxy resin to the power supply, and the power supply is waterproof. The power supply is assembled by many electronic accessories. After assembly, it is subjected to aging and testing, and then assembled into a flood light.
The life of the power supply directly affects the overall life of the lamp. Specific consultation with the business on various parameters of the drive, such as output voltage and current, operating temperature, protection level and so on. The power source of the flood light is to be filled with glue and waterproof. I have even seen some manufacturers rushing consumers in the power supply. Take the 30W LED power supply, there are several, there are dozens of them, there are actually many famous inside.