So, when purchasing an assembled module, be sure to test its output current value. Brightness below milliamperes is not enough, exceeding milliamperes affects lifespan and accelerates skin decay. Uneven appearance, obvious difference: mainly indicated on larger luminescent characters made of pure white

When assembling, the representation of a single module is not obvious. After the entire font is assembled, the difference is obvious. The entire font looks like a map, with white, blue, and yellow pieces. Solution: Before leaving the factory, white lights must undergo spectral separation. Some emit pure white light, some are blue, and some are yellow. The spectrophotometer is expensive, and most small factories do not have such equipment. Therefore, the white light produced is usually sent to large factories for spectral separation. Since it is not a product of our own factory, spectral separation is not as careful

Some small factories simply don't divide everything. Usually, Dongguan LED manufacturers come to attract customers at low prices, so when purchasing white light, do not blindly seek cheap prices. Instead, make sure to purchase LED single particle lamps or modules from the same manufacturer, batch, and number to produce the same batch of LED characters. Partial strokes or sudden or intermittent dimming of the font: After a period of use, the light source of the illuminated font or the entire font starts to flicker, intermittently dimming, and finally completely dimming

Most of the light emitting modules sold in the market in Dongguan are connected using patch cords, making it convenient and efficient for advertising manufacturers to install light emitting modules. However, there have also been some new problems, as the connectors are prone to oxidation due to moisture erosion in the air during long-term use, resulting in poor contact, causing partial or all circuits to momentarily or completely power off, causing the font light source to flicker or not light up

Solution: When making the module, there is no need for connectors. Instead, connect it directly with copper tinned wires and solder it firmly with activated carbon Using artificial agate to produce fully enclosed hollow three-dimensional luminous characters, isolating the contact between light sources and air. Short service life: The theoretical service life of regular manufacturers is generally about hours