quick specifications: Size 55*53*133cm Net weight 40kg Screen size 12 Inch Laser type Diode laser wavelength 800-810nm Control Method Touching control Energy density 10-70J/cm2 (Deviation≤±2%) Pulse width range 5-400 ms Spot size 12*20mm Frequency 1-10HZ Input Power 1800W Cooling system Semiconductors+water+air cooling triple Fuse specification Ø5×25 10A Output Mode Pulse output why choose us: 1 Germany impored laser bars, 10 bars, which could reach max 168j energy. 2 strongest cooling circulation: wind cooling + water cooling + semiconductor cooling pads. 3 0 celsius treatment temparature, very comfortable than traditional ways. 4 there is a powerful booster pump, to guarantee perfect circulation of water cooling, cool down the crystal in head very fast and it also can prolong the continue working time.. we provide 2 years warranty !! please contact me soon~