Banggood

I planned to built with this item an a portable personal air ionizer. For this reason take a photo (see below) to efficiency. Left meter a miliampermeter, the right meter a voltage meter. You see the current, voltage and emitted voltage.

must Say you can't trust Bangood for such Products off market. love the Service too.

Smaller than expected, but that's not an issue. Phenomenal client care and service from Banggood. Thank you Banggood.

Funziona, messo subito all'opera..... economico, piccolo e versatile, basta adattarlo a qualche scatola ed e perfetto

Product as advertised, works very well.

as mentioned , work from 3v - 6v ..... can use with USB power source too

item received , did not test it yet but for the first impression looks good ,

good item

product like described.

Compact device and works well.