Not only are our products the best on the market, but we price them below the competitions devices. Our units have a uniform output from one electrical pulse to the next. Tests with a dummy subject - e.g. a moist sponge, or coin, show no significant differences from one photo to the next. Our units have a ground plug for a wrist strap to properly ground each subject. This eliminates the variable of degree of the subjects electrical grounding.
All devices come with a ten day no questions asked money back guarantee.
Just send the unit back for a full refund, minus our shipping expenses. One year, parts and labor. You pay shipping. There are several books available on the subject of Kirlian photography. See our book listing.