Due to different circuit designs, there has AC-DC power supply and DC-DC converter when you select. Finding a custom external power supply manufacturer with the required dc output voltage, or using a dc-dc converter to create the required dc output voltage.

KEYSUN power supply (VAC - VDC)'s input consists of three types as below:

① 100~277VAC input to 12Volt, 24Volt, 36Volt, 48Volt output

② 100~240VAC input to 5VDC~48VDC output voltage range option

③ 100~120VAC input to 12VDC, 24VDC output

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  In ① and ② inputs models, KS’s led driver power supply and adapter charger can work properly no matter under AC or DC input. Some led driver power supplies models need correct connection of input poles, positive pole connects to AC/L; negative pole connects to AC/N. Others may require opposite connection, positive pole to AC/N; negative pole to AC/L. If clients make a wrong connection, the power supply will not be broken. You can just reverse the input poles and power supply will still work.

• In ③ input models, please make sure that you switch the 110/220V input correctly. If the switch is on the 110V side and the real input is 220V, the AC to DC power supply will be damaged.