Light-emitting diode (LED) fluorescent lamp with rotatable lamp heads

Abstract

The invention relates to a light-emitting diode (LED) fluorescent lamp with rotatable lamp heads. The LED fluorescent lamp comprises a main body tube, a power plate component and the rotatable lamp heads, wherein a mask is arranged on the upper part of the main body tube; the left and right ends of the main body tube are respectively provided with the rotatable lamp heads; a lamp panel is arranged in an internal cavity of the main body tube; the power plate component is arranged at the upper end of the lamp panel; and the left and right ends of the lamp panel are respectively connected with the rotatable lamp heads through power connecting lines. The LED fluorescent lamp with the rotatable lamp heads has the advantages that: a power supply is directly integrated with the lamp panel by using a circuit; without disassembly of an inductive ballast, which comprises a starter, and an electronic ballast, an old fluorescent lamp can be replaced, so a replacement program is simplified; the two ends of the main body tube are provided with the rotatable lamp heads, so when the LED fluorescent lamp is applied to the conventional fluorescent lamp holder, an angular trouble can be avoided, a single head or double heads can be directly energized, and the LED fluorescent lamp is more convenient for operation; and by design of a spring structure, the LED fluorescent lamp can easily rotate without the help of any tool, so the LED fluorescent lamp can more convenient, more quickly and more safely operate at a high position.

Description

technical field [0001] The invention relates to the technical field of lighting equipment, in particular to an LED fluorescent lamp with a rotatable lamp head. Background technique [0002] At present, the fluorescent lamp (fluorescent lamp) power supply on the market cannot directly replace the fluorescent lamp with inductive ballast and the fluorescent lamp with electronic ballast. Instead, the inductive ballast and the electronic ballast need to be disassembled, and the circuit is changed to AC mains (100VAC 120VAC 220VAC 230VAC 240VAC) for direct input. This not only results in a huge project and high cost, but requires professionals to change the circuit to install (the four pins cannot be input at any two); moreover, the step-down Buck scheme is generally adopted, and PFC (power factor correction) uses passive wave-by-wave rectification (valley-filling) type) circuit, harmonic distortion is large, the loop of voltage and current is unstable, flickering is easy to occu...

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Problems solved by technology

[0003] The object of the present invention is to provide a LED fluorescent lamp with a rotatable lamp cap, which overcomes the problem that there is no universal LED fluorescent lamp power supply at present, and the power supply of the circuit with (electronic / inductive) rectifier cannot be directly connected, and the procedure is troublesome when replacing the old fluorescent lamp; Defects in Controlling the Exit Angle Offset of LED Fluorescent Lamps

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