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2. Cap lamp - Wikipedia

   en.wikipedia.org/wiki/Cap_lamp

   The two most recent variants of the cap lamp are the GEN 4 and GEN 5 models. The GEN 4 model, approved for use by the Mine Safety and Health Administration (MHSA), uses the headpiece of existing cap lamps, but retrofitted with new LEDs and electronics. The GEN 5 model is very similar to the GEN 4 model except with a more intense spot beam that ...

3. Mining lamp - Wikipedia

   en.wikipedia.org/wiki/Mining_lamp

   1909 Cap (helmet) lamps introduced in Scotland 1911 Prize offered for best electrical lamp 1911 Coal Mines Act made requirements for pit managers to take examinations, where can be used (including electrical), etc. 1920 Electrical lamp with built in accumulator 1924 Miners Lamp Committee – tests and recommendations

4. Safety lamp - Wikipedia

   en.wikipedia.org/wiki/Safety_lamp

   A newer light source, the light-emitting diode (LED), has advantages for safety lamps, mainly higher efficiency providing much longer illumination time from the same battery. Batteries too have improved and provide more energy per unit weight; LEDs in conjunction with batteries such as rechargeable lithium units provide much better performance ...

5. Tesla stock falls as Trump trade fades, EV tax credits come ...

   www.aol.com/finance/tesla-stock-slumps-post...

   Tesla stock fell as the stock's post-election gains faded amid a cooling of the Trump trade and a new report from Reuters that suggested EV tax credits could be cut under the incoming Trump ...

6. ‘Hot Ones’ Studio Sold by BuzzFeed for $82.5 Million to Soros ...

   www.aol.com/entertainment/hot-ones-studio-sold...

   “Hot Ones” is going solo. BuzzFeed announced a deal to sell First We Feast, the studio behind the popular YouTube chicken-wing-eating celebrity talk show “Hot Ones,” for $82.5 million in ...

7. Headlamp (outdoor) - Wikipedia

   en.wikipedia.org/wiki/Headlamp_(outdoor)

   Battery-powered headlamps with incandescent bulbs were used until the advent of LED lamps with much higher efficiency and consequently longer battery life. Thomas Edison developed electric cap lamps for miners in 1914; by 1915, certain cap lamps were approved by the United States Bureau of Mines for safe use where there may be inflammable gas ...