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2. LED tube - Wikipedia

   en.wikipedia.org/wiki/LED_tube

   LED tube with specific starter Specific lampholder with direct connection between AC and lamp contacts Dummy starters. In December 2014 a standard for LED tubes (EN62776) was completed which guarantees a safe replacement of the traditional T8 Fluorescent tube. Thanks to the standard, it is possible to replace old fluorescent tubes with LED ...

3. Lightbulb socket - Wikipedia

   en.wikipedia.org/wiki/Lightbulb_socket

   The base may be an extension of the glass envelope of the bulb, with the wire leads of the lamp folded up at the base. Some wedge bases are made of plastic and slipped over the wire leads. A wedge base holds the lamp by spring compression in the socket. The lamp is inserted and removed without twisting.

4. Wedge base - Wikipedia

   en.wikipedia.org/wiki/Wedge_base

   The wires are usually inserted into a plastic base that the bulb is mounted in, and which is often narrower at the tip than at the bulb, giving it a wedge shape and usually ensuring a tight connection, depending on manufacturing tolerances. Some bulbs have no plastic base, and the wires are simply bent up to the sides of the bulb's glass base.

5. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   Fluorescent lamp efficacy is dependent on lamp temperature at the coldest part of the lamp. In T8 lamps this is in the center of the tube. In T5 lamps this is at the end of the tube with the text stamped on it. The ideal temperature for a T8 lamp is 25 °C (77 °F) while the T5 lamp is ideally at 35 °C (95 °F).

6. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Fluorescent lamps in various embodiments. Since their introduction as a commercial product in 1939, many different types of fluorescent lamp have been introduced. Systematic nomenclature identifies mass-market lamps as to overall shape, power rating, length, color, and other electrical and illuminating characteristics.

7. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   Direct drive is the simplest-to-understand approach—it uses many independent single-LED (or single-string) circuits. For example, a person could design a digital clock such that when the clock displays "12:34" on a seven-segment display , the clock would turn on the appropriate segments directly and leave them on until something else needs to ...