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2. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   Miniature LED flashlight on a key chain, powered by lithium primary coin batteries. Light output from LED flashlights varies even more widely than for incandescent lights. "Keychain" type lamps operating on button batteries, or lights using a single 5 mm LED, may only produce a few lumens. Even a small LED flashlight operating on an AA cell ...

3. Grab this small utility flashlight on sale for 33% off - AOL

   www.aol.com/grab-small-utility-flashlight-sale...

   TL;DR: Through Oct. 12, you can get the 8-in-1 Maglight Mini Super Bright Utility Flashlight for just $19.99 instead of $29.99 — that's a 33% discount.Whether you’re camping, doing car ...

4. Solar-powered flashlight - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_flashlight

   A solar flashlight with built-in radio. Solar powered flashlights (American English) or solar powered torches (British English) are flashlights powered by solar energy stored in rechargeable batteries. Most of these flashlights use light-emitting diodes lamps [1] [2] since they have lower energy consumption compared to incandescent light bulbs. [3]

5. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp. Some HP-LEDs in this category are the Nichia 19 series, Lumileds Rebel Led, Osram Opto Semiconductors Golden Dragon, and Cree X-lamp.

6. Streamlight - Wikipedia

   en.wikipedia.org/wiki/Streamlight

   Streamlight is a company located in Eagleville, Pennsylvania, United States, that manufactures flashlights powered by various rechargeable and disposable batteries. [2]Their product line features hand-held and weapon-mountable lights [3] as well as a right angle light used by firefighters on their turnout gear. [4]

7. Kel-Lite - Wikipedia

   en.wikipedia.org/wiki/Kel-Lite

   The Kel-Lite was a highly-durable, weather- and shock-resistant flashlight (UK: torch), made of heavy 6061-T6 aluminium. According to company founder Donald Keller, a Los Angeles County Deputy Sheriff, he began working on the concept in 1964 as he was tired of the lack of durability of the generically available, cheap metal flashlights of the day; the prototype was largely designed by 1968. [1]

8. Lumen (unit) - Wikipedia

   en.wikipedia.org/wiki/Lumen_(unit)

   The lumen (symbol: lm) is the unit of luminous flux, a measure of the perceived power of visible light emitted by a source, in the International System of Units (SI). Luminous flux differs from power ( radiant flux ), which encompasses all electromagnetic waves emitted, including non-visible ones such as thermal radiation ( infrared ).

9. Blacklight - Wikipedia

   en.wikipedia.org/wiki/Blacklight

   uv led Ultraviolet light can be generated by some light-emitting diodes , but wavelengths shorter than 380 nm are uncommon, and the emission peaks are broad, so only the very lowest energy UV photons are emitted, within predominant not visible light.