La description

8A
Input  voltage: jumper selectable *****2V AC or ******4V  AC
Frequency:    ****0 HZ
Output voltage:max *0V dc at **7V ac
Resistance:      *0ohms minimum
Current:           continuous 2A dc   Intermittent 5A for *0 secs
Regulation: +/*1%
*2A
Voltage Set-up: the voltage set up when the remnant magnetism greater than 4V *5Hz
Input power Supply:AC **0~**0V *0/*0Hz
Max  output: DC 5A *5V(when the voltage reaches AC **0V)
Frequency Compensation:Built-in low speed protective circuit.
Regulation: less than 1%

*5A(*5B)
Input  voltage: ******0VAC
Frequency:    ****0 HZ
Output voltage:max *0V dc at **7V ac
Resistance:      *0ohms minimum
Current:           continuous 6A dc   Intermittent *5A for *0 secs
Regulation: +/*1%

Gasoline AVR:
AVR-G2 technical data:
Power scope:0－2KW
Input:****0VAC
Output:*5VDC, 2A
regulation factor:≤1.5%
Programmable :*8V, **0, **0V

AVR-G5
technical data:
Power scope:0－5KW
Input:**0VAC
Output:*0VDC, 3.5A
regulation factor:≤0.5%
Programmable :**0V