It’s a lot better to be able to flash your own because you may need to tweak the offtime and LVP values. Please see this thread: Hoop - Guide: how to flash a NANJG / Qlite driver with custom firmware
RMM will probably flash whatever you need on an MCU for one or two USD, with shipping around $2 USD: http://www.mtnelectronics.com/index.php?route=product/product&product_id=311