2. compact type;

3. protection function: short circuit protection / over current protection / over voltage protection;

4. built in active power factor correction;

5. when 115VAC, the PF value is greater than 0.98, when the value of PF is greater than 0.95 in 230VAC;

6. low cost, high reliability, high efficiency;

7. natural cooling;

8. all use 105 DEG C electrolysis;

9.100% full load test;

10. Three  year warranty;