good value,good quaility
for a wind set up this item is just what ya need to protect your investment, power got to go some where so when every thing [batteries]charged and not to over charge, or free wheel, with no resistance system diverts power to dumps, must match watt per watt to be safe, if your wind power unit says 900 watts output then you will need 3 of the 300 watt dump resistors total
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