What's the problem with the 20W power band for the 50wled projector?

Datetime：2017-04-26   

Click amount：7245

In the process of using LED light we may encounter a light power is broken, and we who have no right or just drive power, small or large, then these small or big drive can replace it? For example, what's the problem with the 50wled lights using the 20W power supply?

LED light LED lamp to shine on, using the constant current drive, we can easily calculate the 50W led cast light current need is 1500mA, and 20W led for current light need is 600mA, 20W power supply for driving 50W cast light will cause the current of each beads assigned to only 120mA, less than the current US normal design of 300mA, will cause the brightness is not enough, in sufficient voltage, small power driven power supply with high power light will be that a lack of brightness, or in other words, LED light power is driven by power and light to decide. Then a large power supply with small power lamp what will happen? Similarly, the great and the small current will appear large, too large current chip can not bear will be burned, so in real life we can in some cases with a small driver with high power lamp, just caused by insufficient brightness, short time can still be used, but can not be determined with small power drive light with high power.