1, see the solder joints. Regular LED lights with manufacturers to produce led street lights problems with SMT chip technology, the production of solder paste and reflow soldering processes. Therefore, the LED lights to bring the solder joint is relatively smooth and the amount of solder will not solder cylindrical arc-shaped LED electrode extends from the FPC pad to.
2, see FPC quality. FPC sub copper and rolled copper two Bonded Copper copper foil is projecting the look of the words from the pad to be seen with the FPC connections. Rolled copper is close and FPC as a single entity, can be bent without the pad off phenomenon.
3, see the LED light with the surface cleanliness. If the SMT production, led street lights problems, the cleanliness of its surface is very good, do not see any impurities and stains. But if the cottage version of LED lights with the production of hand-welding process.
4, see the packaging. Regular LED lights with anti-static volume reel packaging, will normally be 5 meters a roll of 10 m roll, then outside, anti-static moisture-proof bags sealed. The cottage version of the led street lights problems with cost savings, recycling volume reel, then no anti-static moisture-proof bags, close look at the volume reel can see the appearance of marks left when the Erase tab and scratches.
5, see tab. Regular led high bay above will have a printed label, with bags and reel disk instead of printing the label. Cottage version of the label is printed, while the specifications and parameters are not uniform.