Pearl, have two red lights on the back, one of them flashing, and two white lights in the front, one of them flashing. Always have two in case one fails as you won't know, particularly on the back. And get reflective ankle straps as said, as they really stand out when a car's headlights light them up. Get reflective clothing rather than yellow high visibly clothing as it stands out better. Also white clothing at night stands out better than yellow.