Interchangeable AC Plug Charger

We are offering 5w--12w ac/dc adapter/interchangeable ac plug charger.
wall inserting type
input voltage: 100 to 240v ac
output voltage: 3 to 38v
ac input frequency: 50 to 60hz (limit: 47 to 63hz)
ripple: 1% peak-to-peak maximum
over-voltage protection: provided by zener diode
over-current protection: auto-recovery
short-circuit: auto-recovery
operating temperature: 0 to 40° c
storage temperature: -20 to 75° c
relative humidity: 10 to 95%, non-condensing
load regulation: typical ± 5% variation from minimum to maximum output current
withstanding voltage: 3000v dc from input to output
high efficiency and reliability
one year limited warranty.