we have many kind of AVR.each have different specification.for example,we have model AVR-500W,AVR-1000W,AVR-1500W,AVR-2000W,AVR-3000W,AVR-5000W,AVR-7500VA,AVR-10KVA,AVR-15KVA-3,AVR-20KVA-3,AVR-30KVA-3,AVR-50KVA-3,AVR-70KVA-3,AVR-100KVA-3,AVR-10KVA-3.The application is:1)Application
2)Computers
3)Duplication
4)Illumination system
5)Safety warning equipment
6)Program-controlled telephone
7)Experimental instrument
8)Medical instrument
9)Communication system
10)Refrigerator
11)TV sets
12)Air-condition

you can look them in our web:

http://www.hongdaelectric.com/bidai/show6%2B%2B.asp?cpfl=Automatic%20Voltage%20Regulator