I got this DC load from my lovely wife (she is the best) for my birthday.
This is a good example of excellent German design and built quality. In my opinion, one never can go wrong, when buying any measurement equipment made in Germany. The specs of the load are:
Load Voltage: 0,35 V – 75 V
Load Current: 0 A – 20 A
Max. Load Power: 250 W
We found it from eBay and it was a steal. The GPIB options allows me to integrate it into my LabVIEW setup. Unfortunately one of the connection terminal jacks was broken off, when the load arrived. But the manufacturer zentro elektrik was amazingly nice and send me a spare free of charge. I took the opportunity to take some pictures while the casing was open: