Now LED lighting can be regarded as one of the indispensable lighting products. And LED work light bar are widely used in work place. You need to pay attention to the following six aspects when you are buying LED work light bar.
1. FPC quality. FPC is divided into two kinds: polygon and rolled copper. The copper foil of polygon clad is projecting, and then look at the FPC connector from the pad, it can be found out. While the rolled copper is close with the FPC and even can be bent and will not appear pad off phenomenon. Polygon clad pad will appear if it is bent too much, and when the temperature is too high, it will result in the maintenance pad off.
2. The surface cleanliness. If work light bar is using SMT technology, its surface cleanliness is very good. Do not see any impurities and stains. However, if the use of hand-welding process to produce copycat version of LED lights, regardless of the surface cleaning, there will be residual traces of stains and cleaning , while there remains in flux and tin slag FPC surface.
3. The solder joint. Good quality LED lights produced by good auto light bulbs manufacturer is using SMT chip technology with solder paste and reflow processes of production. Thus, the solder joint of LED work bar is the relatively smooth and little the amount of solder. Solder joints are a circular arc extending from pads of the FPC to the LED electrode. While the amount of solder joints of knock-off products c of LED lights is uneven, mostly a dot wrap welding foot, and there will be varying degrees of tin tip appears, which is a typical phenomenon of manual welding.
4. The packaging. Regular LED lights will use anti-static packaging trays volume, usually 5m or 10m roll, and then use anti-static moisture-proof outer bag sealed. The knock-off products because of the cost savings, they use recycled roll tray. Then there is no anti-static moisture-proof bags, look carefully roll trays can see when you look there are traces of clear labels and scratches.
5. Look at the label. LED lights with regular bags and roll tray above will have a printed label, instead of printing labels. The cottage version of the label is printed, and specifications and parameters are not unified.
6. Annex. Regular LED lights will be accompanied by instructions for use inside the box and lights with specifications, while also equipped with LED lights with connectors or deck; cottage version of the LED lights inside the box without these attachments because some manufacturers try to save material as much as possible.
1. FPC quality. FPC is divided into two kinds: polygon and rolled copper. The copper foil of polygon clad is projecting, and then look at the FPC connector from the pad, it can be found out. While the rolled copper is close with the FPC and even can be bent and will not appear pad off phenomenon. Polygon clad pad will appear if it is bent too much, and when the temperature is too high, it will result in the maintenance pad off.
2. The surface cleanliness. If work light bar is using SMT technology, its surface cleanliness is very good. Do not see any impurities and stains. However, if the use of hand-welding process to produce copycat version of LED lights, regardless of the surface cleaning, there will be residual traces of stains and cleaning , while there remains in flux and tin slag FPC surface.
3. The solder joint. Good quality LED lights produced by good auto light bulbs manufacturer is using SMT chip technology with solder paste and reflow processes of production. Thus, the solder joint of LED work bar is the relatively smooth and little the amount of solder. Solder joints are a circular arc extending from pads of the FPC to the LED electrode. While the amount of solder joints of knock-off products c of LED lights is uneven, mostly a dot wrap welding foot, and there will be varying degrees of tin tip appears, which is a typical phenomenon of manual welding.
4. The packaging. Regular LED lights will use anti-static packaging trays volume, usually 5m or 10m roll, and then use anti-static moisture-proof outer bag sealed. The knock-off products because of the cost savings, they use recycled roll tray. Then there is no anti-static moisture-proof bags, look carefully roll trays can see when you look there are traces of clear labels and scratches.
5. Look at the label. LED lights with regular bags and roll tray above will have a printed label, instead of printing labels. The cottage version of the label is printed, and specifications and parameters are not unified.
6. Annex. Regular LED lights will be accompanied by instructions for use inside the box and lights with specifications, while also equipped with LED lights with connectors or deck; cottage version of the LED lights inside the box without these attachments because some manufacturers try to save material as much as possible.
RSS Feed