What factors concern you most when you’ll buy led power supply?

Which the led power supply transforms electricity energy into light energy. in generally ,the input source of led power supply include
industrial frequency alternating current(AC), source of direct current(DC). the following points should be consideration when choosing and designing your solution.
1．High efficiency: LED is save energy production, so the led power supply must have high efficiency.
2. High power factor: high power factor is another important requirement of  the power network to load.
3.Driver way: led power supply divide into constant voltage and constant currently.
5．Surge protect: it is intolerable for the led who capacity of surge protect.
6．Protection function: besides regular protection function such as currently protection, you will also find more protection function such as “temperature protection”. requirement! Come according to the standard of protocol and want to accord with national level and electrical Safety .