POWERMODEL 2T S (2 stroke oil) spo default 2 module soft transition selectable ARSW 2 module soft transition selectable Sport Navigation and strobe special function for many sport applications Special Function Slow Signals a soft transition simulates a soft glow on and glow off like an old glow bulb or simulates a rotating beacon effect of slow blinking functions Startup Overflow Vent System High Flow Series It is specially designed to provide high temperature protection required for extreme conditions of sustained high power rpm in restricted airflow conditions Mix ratios up to 50 1 or according to the manufacturer