UNIT Size: 12" high x 9" wide x 9" deep Weight: 11 lbs Coverage: 250' sq. to 3000' sq. POWER CORD Fuyuang Switching Power Supply Model: FY3803000 Input: 100-240VAC 50/60Hz 2.5A Output: 38V DC 3A See the power supply label for certifications and warnings. PCO CELL Normal Mode Output: < 0.02 ppm ozone (ambient room concentration) PURIFICATION PLATE High Mode Output: 250-360mg ozone per hour IONIZATION NEEDLE 24 to 30 KV, 20-30 Khz Ion Generation Pulsator 6KV DC Needle Ion Generator One Year Warranty