Abstract: Lighting devices, methods, and vehicles are provided. The devices include a unitary body formed of a metal clad printed circuit board (MCPCD). The body includes first, second, and third support members having first, second, and third support surfaces. The first and second support members are integral with each other with a bend at a boundary therebetween. First and second protruding members having first and second functional surfaces extend from the first support member, and third and fourth protruding members having third and fourth functional surfaces extend from the second support member. First and second light sources are fixed to the first and second support surfaces, respectively. The first and second light sources are operable via a circuit layer of the MCPCD. The first, second, third, and fourth functional surfaces are configured to reflect and/or block the light emitted by the first or second light source.

Abstract: An LED current control device (100) includes a set of one or more LEDs (10) connected to a current-sensing element (20) and an external voltage source (VEXT). A sense signal produced by the current-sensing element may be amplified by a sense signal amplifier (30) and sent to a switching controller (40 and 50). The switching controller may perform hysteretic control on the amplified sense signal by controlling a switching element 70 to turn on and off. The on and off states of the switching element respectively enables and disables power from the external voltage source to the LEDs. As such, hysteretic control may be performed on the current in the LEDs.