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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 ...
These include Regulation 37, [1] which contains specifications for filament lamps, and Regulation 99 and its addenda [2] [3] which covers light sources for high-intensity discharge headlamps. Some UN-approved bulb types [4] are also permitted by some other regulations, such as those of the United States or of Japan, though Japan has begun ...
Before and after those years, vehicles could have model-specific, nonstandard-shape headlamps, using any of a wide variety of replaceable light bulbs. Between 1940 and 1956, all U.S. cars had to have two 7-inch (178 mm) round headlamps with dual filaments, so each lamp provided both a high and a low beam light distribution.
The first dual-filament halogen bulb to produce both a low and a high beam, the H4 (60/55 W @ 12 V, 1650/1000 lm ±15% @ 13.2 V), [93] was released in 1971 [13] and quickly became the predominant headlamp bulb throughout the world except in the United States, where the H4 is still not legal for automotive use.
Avoid the stresses of hosting a holiday party by limiting guest beverage options so you can spend more time focusing on family and friends. Here are 5 tips to help.
Caroline Fenton, Jason Fitz & Adam Breneman break down Oregon's win vs. Wisconsin, the Georgia Bulldogs' takedown of the Tennessee Volunteers and more.
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