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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