JUST AS BEAUTIFUL AS THE PROVARI BUT DAMN NEAR HALF THE PRICE!!! VMAX has the following Features: *VMax can be adjusted from 3.0-6.0V volts in 0.1 volt increments. *Built-in three digit display allows you to visually adjust your voltage. *VMax holds two specially designed 18350 High Power Batteries. *VMax is made of brass painted with black/silver. *VMax PCB allows 5 Amperage output limit. *VMax button never gets stuck with flexible 360° turning around.