RC Timer 50A brushless/brushed ESC

[mjderstine]

hey guys, i found these on ebay, and the one thing that makes them stand out to me is that they run brushed and brushless. they are also cheap which could make them appealing as a nice esc for 1/10 bashing. 4 cell lipo is also a very cool thing to have.
here are some specs direct from ebay.

i would love to get some thoughts about this thing from some of the more educated guys on ESC's from here. i swear, most of you have masters degrees in electrical engineering to do what some of you do.



http://cgi.ebay.com/ws/eBayISAPI.dll...m=120354459145

High quality
1.1 Output: Continuous current 40A, working current at 50A can last over 1 minute,burst current 60A.
1.2 Input: 4-12 cells NiMh/NiCd or 2-4 cells LiPo. (Note)
1.3 BEC Output: 6V/1A.
1.4 Resistance: 0.0006 Ohm.
1.5 Motor Supported: Sensored brushless / Sensorless Brushless / Brushed
1.6 Suitable Brushless Motor: 5.5T and >5.5T
1.7 Suitable Car: 1/10, 1/12 on-road or off-road cars / trucks for normal race.(Great power for 2S lipo battery)
1.8 Size: 31.5mm(L) * 27.5mm(W) * 24mm(H).
1.9 Weight: 30g(Without wires)
Note1:
For brushless motor, the ESC supports up to 12 cell NiMh/NiCd (or 4 cell Lipo) input; While for brushed motor, the ESC only supports up to 6 cell NiMh/NiCd (or 2 cell Lipo) input.
For 4-6 Cell Ni-xx: You needn't change the fan coming with the ESC;
For 7-9 Cell Ni-xx: You must change the fan because it cannot work with such a high voltage, so please choose a high voltage fan or supply the fan from the receiver (+6V);