How To Identify The Led Light With The Eyes Of The Good Or Bad Quality?
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Submitted by: Sara Wolf
How to identify the LED light with the eyes of the good or bad quality?
1, see the solder joints. Regular LED strip light manufacturers to produce the LED lights is the use of SMT chip technology, solder paste and reflow soldering production. Thus, LED strip light on the amount of solder joints is relatively smooth and not many joints cylindrical arc-shaped LED from the FPC to the electrode pad at the extension office. The cottage version of LED light amount of the solder joints is uneven, mostly a dot wrap fillet, and have varying degrees of tin tip appeared, which is typical of manual welding.
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2, see FPC quality. FPC sub-rolled copper and copper are two kinds of Bonded Copper of copper foil is protruding, then look from the pad and the connection of FPC seen. The rolling of copper and FPC is closely connected as one, and can bend and will not appear any pad off phenomenon. Bonded Copper pad will appear if bent too much off, when the temperature is too high maintenance can also cause the pad off.
3, see the LED strip light surface cleanliness. If the SMT technology and production of LED strip light, the surface cleanliness is very good, do not see any impurities and dirt. However, if the hand-welding production Knock LED strip light, no matter how clean the surface, there will be residual traces of the stain and cleaning, while the surface of the FPC will be flux residue and solder residue.
4, see the packaging. Regular LED lights will use anti-static packaging trays volume, usually 5 m or 10 m roll of a roll, and then outside and then use anti-static bag sealed moisture-proof. The cottage version of the LED strip light because of cost savings, while the use of recycled material disk volume, then there is no proof anti-static bags, a close look at the volume tray can be seen that the appearance of a clear label traces and scratches.
5, see the label. Regular LED lights and the volume of bags will have printed material above the disk label instead of printing the label. The cottage version of the label is printed, and specifications and parameters are not uniform.
6, see Annex. Regular LED lights will be attached inside the box with instructions and lamp specifications, and will be equipped LED strip light connector or deck; The cottage version of the LED strip light inside the box there is no such attachment because Some manufacturers, after all, could save the province.
First, the main structure and scope of
LED strip lamp with high thermal conductivity 6063 aluminum, the appearance of high-grade fine, light use of U.S. imports Puri chips 5050 SMD LED. For jewelry, display counters, lighting, home villas, shopping malls, hotels, office lighting, decorative lighting, leisure places, is ideal to replace the traditional fluorescent tube lamps.
Second, the structural parameters
Input Voltage: 220V
Operating voltage: 12V
Power: 13.2W
Strip Length: 1m
Output luminous flux: 1040lm
CRI: 85
Light Source: LED0.2W * 66pcs / m
Color temperature :2700-7500K
Color: Silve
Operating temperature: -20 ? ~ +60 ?
Humidity :10-90RH
Electric shock rating: ? class
Use drive: constant current drive, stable, safe and reliable
Photometric Type: 120
Photometric mode: selected light source, the LED light color better, even centralized spot, no noise, no dark shadows
Connection: Terminal Link
1 Check the chimney, light bar, finishing with a variety of supporting components and accessories are complete;
2, according to the length of the counter, the processing of shade to match the length of the intercept, and then ends processing 45 cutting angle
3. Lampshade around the counter to open at both ends of the inside diameter of 3.5mm, respectively, through-hole to pad connections and fixed;
4 light pipes under part of the distinction between the two left and right ends of M3 holes, and triangular blocks in order to connect;
5 to the lamp to be installed into the light of the appropriate size, connected together by triangular block;
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6. Shadowless adhesive with the fixed block in the corresponding openings around the chimney inside the glass;
7 with screws to connect a good shade fixed on the counter;
8 fitted over poles;
9. Install the driver. Mind when installing the input and output ports, the connection light of the attention is negative connection. Red for the positive connection, black for the negative connection.
More information:
http://www.espow.com/wholesale-health-lifestyle-led-lamps-led-light-bulbs.html
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