VWG2008V4 charge controller's specification:

Model	VWG2008V4-12/24v
Rated power	600W
Max Wind Input Power	600W
Max PV Input Power	200W
Rated Battery Voltage	12V	24V
Wind turbine automatically braking voltage	17.5V	32.5V
Battery over charge protective voltage	14.4V	28.8V
Battery over discharge protective voltage	10.98V	21.97V
Over discharge voltage recovery	12.44V	24.88V
Rated charge current	42A	21A
No load loss	≤45mA
Protection Type	1,Over charged protection; 2.Over discharged protection. 3. Reverse polarity connection protection.  4. PV Panel reverse current protection. 5. Short circuit protection.  6. Thunder and Lighting protection
operation Ambient tempreture	-10℃～50℃
operation Ambient humidity	0～90％
Size(W×H×D)mm	284×181×76mm
Weight(KG)	1.6kg