CONDITION NEW IN BOX DESCRIPTION This is our most well liked and best selling Silent Electrics Van De Graaff generator. This Van De Graaff generator model features a larger, more powerful motor producing 3,500 R.P.M. See a video of it operating here: https://youtu.be/bjE0T212-jI Have a HAIR-RAISING good time with this Van De Graaff static electricity generator that can produce an electric potential difference of 325,000 volts or more and up to 6″ sparks when tuned properly! This feature wealthy Van De Graaff generator model comes complete with the following: 1. Large 10″ Stainless Steel Dome 2. Discharge wand. 3. Dielectric ABS and Nylon rollers. 4. Fuse Overload Protection. If the belt breaks and jams the motor (as steadily happens with the belt being confined), the fuse will prevent your motor from locking up. 5. Built in humidity regulate bulb mounted in the base. Along with clearing humidity in the chamber and dome, the bulb adds a neat visual effect to a darkened room all through demonstration. High humidity can rob the machine of up to 60% of its output capacity. 6. Quick connect terminals at the top of the main discharge dome (for users wanting to harness the voltage output for experimentation) and at the base. 7. Quick belt tensioning system conveniently positioned in upper dome. Dual tensioners will go back and forth up to 1.5″ / 38mm. Dual Tensioners make centering belt go back and forth a snap! 8. Connecting wire. 9. Styrofoam storage case. 10. Convenient discharge wand storage receptacle built into the base (seen at the product photo). 11. Complete user guide / manual. 12. Many educational accessories to demonstrate the science at the back of high-voltage static electricity13. Superior fit and finish. SPECIFICATIONS Power Source: 110VAC (3-Prong Grounded Cord) Input Power: 80W Motor RPM: 3,500 Storage Ball Diameter: 10″ (250mm) Discharge Ball Diameter: 2.5″ (60mm) Overall Dimensions: (LxWxH) 11″ x 7″ x 26″ (275mm x 175mm x 660mm) Weight: 18lbs.