Naturanolimit Itis very little and the weigt is only few gramms but, I'm sorry. I just mount it in my mycroscope and can't say you the correct weight.

Naturanolimit Yes.I drive two electric valvle but you can use it for boiler. Take a look for the Amper you can put in the rel

Naturanolimit Idon't know his impedance in ohm but use it as an 8 ohm impendance in a musical box for instrument and music. I drive it with an Monocore ampl of 100 w and it go well. The sound is enougth clear. Give the correct middle higth inflection in the sound. I use it with other three speakers for bass, treble and higt frequency. For the price you could just prove it. I'm happy to use it.

Naturanolimit Idon't measure it but you have to take low the input if you want 2 volts.

Naturanolimit Yesit works with 220. You have only to pay attention to the electrostatic discharges from lightning. Take of the plug when it's raining.

Naturanolimit No.I'm not a seller, but you could bye it in a seller site as ali baba or other. I bye it there.

Naturanolimit I'msorry. I don't know if it respect PFC.

Naturanolimit Thereis a choosing near the voltage in the up right corner.