High-power LED street lamp is mainly driven by high-power white LED, aluminum-based circuit board and constant current. Constant current chip and circuit are well designed, with high efficiency and no heat loss. In addition, the aluminum shell itself is the best radiator, and no heat sink is needed.
Unless you don't use an aluminum-based circuit board in your design or have a poor design and no constant current drive, you can only use the heat sink if the LED generates more heat. That's because many companies in the market use heat sinks because their constant current drive efficiency is relatively poor, and all the electric energy is wasted into heat.
The constant current drive designed by us for a company specializing in street lamp export in Shanghai is very efficient, plus other heat dissipation technologies (this cannot be made public, only confidential).
Only when the power is particularly high and the space of the lamp holder of the street lamp is relatively small, the heat sink must be used.
Do you mean the aluminum-based circuit board? Aluminum-based circuit boards are a little more expensive, but they are also a little more expensive than ordinary optical fiber circuit boards. The cost of dozens of high-power led plus aluminum substrate and constant current driver is 500-600 yuan.
I don't know what your LED street lamp radiator is. It costs 600-800 yuan, which is more expensive than the whole light source. Is it because people think you don't know how to kill you desperately?
There are many manufacturers of aluminum heat sinks and aluminum substrates on the Internet, which can be made according to your requirements. They are all very cheap materials, which is not the cost in LED street lamps.
To put it bluntly, you don't even know the cost of this material. Seeing the popularity of LED in the market, you may just invest in production. That means you don't even know how much money you can earn back. It's hard to say whether your business is successful or not.
LED street lamp is the most difficult LED application product to open the market. Different from other LED lighting products, they can be used for civil and commercial purposes, but they can be used anywhere where lighting decoration is needed:
First, at present, the technology of LED in street lighting is not very mature, and it does not save electricity under the same brightness. The LED brightness is 70W/LM (good quality). The worst halogen bulbs in ordinary street lamps are all above 100/LM. Many LED street lamp manufacturers use the power of LED street lamps with ordinary brightness to calculate power saving, not when they reach the same brightness. If the brightness is the same, the power consumption of LED is 100÷75= 1.3 times. Even if the common street lamp has low effective power and loss, LED will not save more electricity. Like most power consumption, there is no advantage of energy saving and emission reduction advocated by any country.
Second, the scope of application is relatively narrow, and most of them can only do municipal projects. Unless you have a great background, this may lead to litigation.
Third, the price is high and the market acceptance is low, not to mention that it is difficult to accept at home and abroad. You will know how much LED street lamps are promoted abroad.
This has fulfilled the words of many peers who make high-power led lamps to analyze the current market demand: loud thunder, little rain!
However, since you are considering investing in LED street lamps, you must have your wishful thinking. I suggest you find experienced technicians and salespeople who understand the market first. It will be much smoother and take fewer detours. Wish you success!