I really do love this test load! Scenario:
You have 20 v5 flexdrives and you need to set each one's current, FAST, what are you going to do? The normal test load would burn up if you're trying to set the drivers one after another, but not with this test load!
I use this 3 Amp beast almost every day and I'm never worried about it getting too hot! Its really relaxing when you can just go about you're business, setting up flexdrive's, and not having to worry about duty cycles on your test load. Definitely recommend this product, great customer service and fast shipping. Its also really nice having the switch for red and blue diodes so I can easily switch between the two.