Difference between BK 20120 & 12020

[joeling]

Hi,

Thanks for the prompt replies. Guess I was confused by the product description of the 12020 because it was near identical to that of the 20120 (in fact the detailed description of 12020 states that the controller is 20120 !)

I'm looking to get something similar to the 9920 with a higher amp rating. I find that with 5S lipo & the 7XL, my 9920 is overheating after a couple of minutes. I have the system in a BL buggy with 13T pinion & 46T spur. When I switched to a 10L, temperature came down to around 60 ~ 70deg. C for the controller (vs. 100 deg C +). Mind you, I'm running the esc in forward only mode with reverse & brake disabled.

Guess only the 20120 will fit the bill. Time to start saving.

Thanks.

Regards,
Joe Ling