1. Usage The navigation light has a threeposition switch, followed by double flash, quick flash and breathing. Please attach the transparent protective primer to the preinstalled position, and then attach the lamp with glue on it. Optionally on or use a base.2. Charging When charging with the attached charging module, the indicator light will be red when charging and blue when charging is complete. If charging with CB86, PL8, A6, simple charger, etc., please check the current within 0.1A.3. Product specifications size 43mm13mm11mm, weight 4g, battery capacity 75mah, voltage 3.7V, with overcharge protection.Compatible with RC cars, airplanes, helicopters, boats, robots, etc.Color As shownMaterial PlasticMetalPackage contents3navigation lightOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.