UMI110V to 220V Step up Voltage Converter 100W US to EU Converter for Euro & China Appliance Used in US with 5A Fuse

I have a dyson hairdyerwhich is purchased in china(220v, 1500w) but now i am in the us, and i could not use the dryer, would this make the dryer work?

I have a denon cd player purchased in japan. will this enable me to use the cd player in israel. we have 220volt ac

I have a nakamichi soundspace 5, i want to use it in chile. the nameplate says 90w. this step-down is enough for it??

Mi máquina requiere 220 o 240 y una potencia de 650 W, que equipo me puede servir