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The first LED headlamps were produced in 2000 under the brand name TIKKA. As of 2001, Petzl had approximately 600 products. [4] Later in 2002, the QUARK ERGO was developed and designed to be the first leashless, angled ice axe. [2] In 2004, Petzl's first fall arrest device for work at height was developed. In 2006, the Petzl corporation ...
In order to show compliance to FMVSS 108, the lens of each original equipment and replacement headlamp, daytime running lamp (DRL) and certain conspicuity reflectors must be marked with the symbol "DOT". [1]: S6.5, S8.2.1.3, Table III This symbol may also be applied to compliant signal lighting devices, but is not mandatory.
[citation needed] The headlamp is strapped to the head or helmet with an elasticized strap. [1] Some headlamps have a separate battery pack connected by a cable, to be carried on a belt or in a pocket. [1] Headlamps may be held in place by a single band around the head or (particularly heavier ones) have an additional band over the top of the head.
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
In 2010 the first all-LED headlamps with adaptive high beam and what Mercedes called the "Intelligent Light System" were introduced on the 2011 Mercedes CLS. In 2013 the first digitally controlled full-LED glare-free "Matrix LED" adaptive headlamps were introduced by Audi on the facelifted A8, with 25 individual LED segments. [127]
The Twilight Sentinel system uses a photoelectric cell to measure ambient light levels. This cell is typically mounted on the dashboard of the vehicle. [7] The system is designed to activate the vehicle's exterior lights when the ambient light falls below a certain threshold, typically corresponding to twilight conditions.
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