LED is high power generally connected in series or in parallel?
The disadvantage of tandem is that LED burns a whole string and doesn't turn on!! But it's easy to do the same current for each LED! If the current of LED does not exceed the rated value, it will not burn, and the service life will be long.
The disadvantage of parallel is that each LED gets a different current! Burning a LED is a big burden for each other! But the one that burns remains bright!
All string together, only need to add a resistance current limit, the reliability, safety is the highest.
