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2. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   In the 1970s, Thorn Lighting introduced an energy-saving 8 ft retrofit tube in Europe. Designed to run on the existing 125 W (240 V) series ballast but with a different gas fill and operating voltage, the tube operated at only 100 W. Increased efficiency meant that the tube produced only 9% lumen reduction for a 20% power reduction. [ 7 ]

3. 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 ...

4. LED filament - Wikipedia

   en.wikipedia.org/wiki/LED_filament

   A 230-volt LED filament light bulb, with a B22 base. The filaments are visible as the four yellow vertical lines. A LED filament light bulb is a LED lamp which is designed to resemble a traditional incandescent light bulb with visible filaments for aesthetic and light distribution purposes, but with the high efficiency of light-emitting diodes (LEDs).

5. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.

6. The 12 Best UV Lamps for Nails to Dry Your Polish in Minutes

   www.aol.com/13-best-uv-lamps-nails-184500799.html

   UV LED Nail Dryer. This top-rated drying device can fit in the palm of your hand, and is practically a steal at under $10 (plus an additional 30 percent off). At just 0.11 pounds, it nicely fits ...

7. Hammer drill - Wikipedia

   en.wikipedia.org/wiki/Hammer_drill

   A corded hammer drill next to a drill bit and a chuck key A hammer drill , also known as a percussion drill or impact drill , is a power tool used chiefly for drilling in hard materials. [ 1 ] [ 2 ] It is a type of rotary drill with an impact mechanism that generates a hammering motion.