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How to choose a good low-voltage led light bulbs

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How to choose a good low-voltage led light bulbs        At present, there are so many kinds of 12V/24V low-voltage bulbs in the market, and the prices are varied,take 9w for example,the price from 2.5RMB to 28RMB.But for same LED Why price is so difference more than 10 times? What are the main solutions for low voltage LED light bulbs?What are their strengths and weaknesses?How to choose a good bulb in so many choices?       To do a better job, let's take a look at some of the most common low-voltage bulb .   1.Constant voltage without power supply low voltage bulb       This is the DC12V 9W bulb which saw from Facebook based on price 2.5RMB.I was shock when I saw it ,how to make it based on this low price ?Even we can’t buy the material under this price.But when we open it ,we found the reason.        First of all,there is no driver on this bulb,DC12V power directly connect the PCB throug...
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LED SMT & DIP

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LED SMT & DIP   As we know, PCB board and driver are the most important part in LED light which finished in SMT and DIP workshop.Therefore, the materials in this process and the control of the process will undoubtedly decide the price and quality of an LED light.Then why this same process make such a huge difference?      Lets follow the process of LED SMT & DIP. SMT PCB：     As the carrier of LED driver and SMD ,the choice of PCB board is much more important.There are many kinds of PCB boards in the market based on different quality and price, such as FR-4 , copper base printed board, aluminum base printed board, iron base printed board, ceramic base printed board and so on.According to several years testing and under our experience,aluminum PCB board almost can satisfy the basis requirements except COB type.And the power supply can be used with single or double-sided fiberboard.But there still will be big different for th...
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