The spotlight is replaced quickly. Unlike incandescent bulbs LEDs burden the cyclists at slow Geschwindigkkeit barely. Bulbs already take on considerable power when they are still little more than Infrared produce. The LEDs already light up appreciably at low currents, even when pushing. The parking light is great, especially if the road is sometimes not illuminated. But there are cheaper LED headlamps with an automatic-shift stage in which, depending on the ambient light LED is activated. Unfortunately, too late for me found. But has benefited the children and their partners.