Using your Cateye ORB lightset is a breeze. To turn it on or off, just press the lens - that's your operating switch. You can attach the front and rear lights to your bike easily. For the front light, place it where it can shine clearly ahead, and for the rear light, put it in a visible spot at the back. When using the lights, make sure they are securely attached to avoid them falling off during your ride. To keep your lights in top - notch condition, clean the lens regularly with a soft, dry cloth. Also, replace the batteries as soon as you notice the light getting dim. Store the lights in a dry place when not in use to prevent damage from moisture.