"Joggled" is with its 36 g light as a feather, easy to wear and super-bright. Thanks to PTT (Power Transformation Technology) the lamp only requires one inexpensive battery. Joggled is an active contribution to safety. The lamp has three chips: a white in front and two blue microchips at the back. This lamp is headlight and backlight all in one. The housing is spray-water-proof and enables you to use the lamp in bad weather conditions. Joggers and skateboarders have been waiting for this little LED head lamp for a long time.