At present, the market stage lighting manufacturers countless, lighting products manufacturers reported a far cry from the price, so that buyers dazzled, so manufacturers colleagues gnash their teeth.
LED PA lamps commonly used in the market is common, we are not strangers. He is a part of the stage lighting system can not be missing, we look at the lamp surface are the same. The following 54 3W waterproof lamp, for example, to tell you how to do these low - cost lights.
LED lamp structure mainly includes the following several parts, respectively, lamp power supply, radiator, fan, motherboard, shell, lens, wire etc.. To make the price low, then you have to start from the material to do Kung fu.
1, lamp
LED lamp in the market price is uneven. Why do some beads sell so cheap, some beads price differ several times, in fact, there is the issue. First, it must be the worst materials, such as welding wire with copper wire instead of gold, using recycled materials or scrap production support, these raw materials, consumers are unable to judge it, only use the problem slowly exposed. The second is to increase the use of power, power may be the normal use of beads was 1W, 0.75W, the power to the 3W, beyond the scope of use, the initial brightness is high, but the attenuation is very fast, a few months on the dark. Again is the deficiency of power, is the subject of 3W, actually is to take 1W or 0.75W lamp to replace, or even lower, this is not to test the general consumers.
2, radiator
- when a portion of light emitting lamp electrical energy is converted to heat, poor heat dissipation, directly affect the service life of the lamp. LED, open the lamp lamp radiator, consumers can identify the naked eye. Now on the market a lot of light is very small and very small radiator, and even a lot of businesses in order to compete for the price does not install the radiator. As we all know, a high power lamp lamp, there is no radiator how to ensure good heat dissipation? How to ensure the stable operation of long time full light bulb? 3, power
- the market is a lot of low price power supply is a virtual label or the use of the full drive can not be rated power 180W PA 108W low power supply, in fact, consumers are also very easy to identify the quality of power. Good brand power supply above the transformer and power pipe volume are relatively large, the whole looks more full of texture; component arrangement and production processes are relatively good, the whole looks clean and beautiful. Low power design Jerry without protection, anti surge, rectifier filter, current could save the province, the province is also not, electronic components are also useful for recycling materials, without considering the actual use of the safety and stability.
4, motherboard:
- there are two kinds of drive board on the market, one is constant voltage drive board and the other is constant current. Constant current motherboard high stability, the price is more than double the cost of constant pressure. Most of the low LED PA lamp used in the main board of the garbage, the lamp body temperature rise can not be protected, resulting in LED lamp life greatly reduced. There is the cost of the province, the main board and display board into one.
5, shell
- low cost LED lamp with some impurities aluminum die casting or thin aluminum sheet or plastic shell, low cost, poor heat dissipation conditions.
Summary: familiar with the words of a penny of goods, if you encounter a manufacturer of lamps than other normal manufacturers cheaper than 40%, this time not to be confused. Buy cheap stuff is expected, but much lower than the market price of the things, you should confirm the parameters of the supplier more carefully describe whether it is true, to measure the. Ridiculously low prices, no matter what the seller. Because the price is very low even the cost is not enough, how can there be qualified guarantee? |
