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2. T5 retrofit conversion - Wikipedia

   en.wikipedia.org/wiki/T5_retrofit_conversion

   T5 retrofit conversion can maintain existing lighting levels with the higher efficiency of the T5 lamp. However, with kits that operates the lamp on the existing magnetic ballast, the efficiency drops and the lamp life is considerably shortened, as T5 lamps aren't designed to be operated on mains frequency but only on high frequency.

3. List of automotive light bulb types - Wikipedia

   en.wikipedia.org/wiki/List_of_automotive_light...

   UN Regulation 37 covers motor vehicle filament lamps. These are categorized in three groups: those without general restriction that can be used in any application, those acceptable only for signalling lights (not for road illumination lamps), and those no longer allowable as light sources for new type approvals but still permitted for production as replacement parts.

4. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

5. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   The Lexus LS 600h (XF40) features LED low beam, position and side marker lights in North America, and the 2009 Cadillac Escalade Platinum used LEDs for the low and high beams, as well as for the position and side marker lights. The Mercedes-Benz S-Class (W222) used entirely LED lights, even in the most basic trim level.

6. Hidden headlamp - Wikipedia

   en.wikipedia.org/wiki/Hidden_headlamp

   The last time pop-up headlamps appeared on a volume-production car was in 2004, when both the Lotus Esprit and Chevrolet Corvette (C5) ended production. [ 8 ] [ 9 ] Development of both projector beam headlamps such as those on the 1990 Nissan 300ZX (Z32) , and more efficient, bright LED headlamps has in practice, eliminated the need for hidden ...

7. Housing contract activity, thanks to more inventory, rises ...

   www.aol.com/finance/housing-contract-activity...

   All parts of the country saw more contract activity compared with November 2023, led by an 11.8% jump in the West. Read more: 2025 housing market: Is it a good time to buy a house?