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2. List of automotive light bulb types - Wikipedia

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

   P43t. Japan. Similar US bulb: HB2 (9003) 12V: ECE nominal luminous flux: 1,650 / 1,000 lm ±15% Available with P45t base to upgrade old headlamps designed for R2 bulb. H7.

3. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED. The voltage drop across a lit LED is ...

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The Philips Lighting North America LED bulb won the first competition on August 3, 2011, after successfully completing 18 months of intensive field, lab, and product testing. [196] Efficient lighting is needed for sustainable architecture. As of 2011, some LED bulbs provide up to 150 lm/W and even inexpensive low-end models typically exceed 50 ...

5. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   Automotive lighting. Appearance. For the company owned by Magneti Marelli, see AL-Automotive Lighting. Extensively redundant rear lighting on a Thai tour bus. A motor vehicle has lighting and signaling devices mounted to or integrated into its front, rear, sides, and, in some cases, top.

6. The Best Lighting For Chronic Migraine - Healthline

   www.healthline.com/health/migraine/lightbulbs...

   Halogen lightbulbs. These bulbs, like LEDs, do not flicker. They also emit a warm light that may be more soothing if you have chronic migraine. Halogen lightbulbs are very bright and may be useful ...

7. Light-emitting diode physics - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode_physics

   Light-emitting diode physics. Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called "electroluminescence". The wavelength of the light produced depends on the energy band gap of the semiconductors used.