Abstract: A lens used for cooperating with a light source includes a lens body including a first surface and a second surface that are opposite to each other, an outer lens provided on the first surface, an inner lens provided on the second surface and corresponding to the outer lens. The outer lens and the inner lens are substantially strip-shaped, the inner lens protrudes towards the light source, the outer lens protrudes away from the light source, light emitted by the light source is firstly scattered by the inner lens, and then is converged by the outer lens and emitted to an external environment. An LED lamp is further provided.

Abstract: A lens used for cooperating with a light source includes a lens body including a first surface and a second surface that are opposite to each other, an outer lens provided on the first surface, an inner lens provided on the second surface and corresponding to the outer lens. The outer lens and the inner lens are substantially strip-shaped, the inner lens protrudes towards the light source, the outer lens protrudes away from the light source, light emitted by the light source is firstly scattered by the inner lens, and then is converged by the outer lens and emitted to an external environment. An LED lamp is further provided.

Abstract: A lamp includes a heat sink, a mounting groove formed on a front side of the heat sink with a groove wall enclosing the mounting groove; an LED panel mounted in the mounting groove; a driving power supply electrically connected to the LED lamp panel; a lens plate covering the LED lamp panel and configured to slide relative to the groove wall; a pressing frame covering the lens plate and fixed to the heat sink; and at least a pair of telescoping rolling balls provided to ends of cylinders connected to the heat sink, the lens plate configured to slide on the rolling balls.

Abstract: An LED lamp includes a heat sink including a first surface with a first receiving portion thereof, and at least one LED plate installed at a bottom portion of the first receiving portion; a second receiving portion arranged on a top portion of the first receiving portion to receive a transparent element therein that covers a light-emitting surface of the LED plate; an insertion port arranged on the second receiving portion and located on a first plane of a first end of the heat sink; a first moving member arranged on the first plane of the first end and corresponding to the insertion port, a second moving member arranged on a second plane of the first end and movably connected to the heat sink, both the first and second moving members movably connected to each other and moving relative to the heat sink to open or close the insertion port.