LED support, lamp bead, conductive base, light-emitting unit module and device

The invention provides an LED support, a lamp bead, a conductive base, a light-emitting unit module and a device, the conductive base comprises at least two metal sheets which are arranged in an insulated and isolated manner, the metal sheets are combined with colloid used for forming a support shell to form the LED support, the upper surface of at least one metal sheet is used for bearing an LEDchip, and heat generated by the LED chip during working can be directly transmitted to the metal sheet and is quickly dissipated outwards through the metal sheet; the lower surface and the first sidesurface of the metal sheet are exposed and are respectively provided with a first concave part and a second concave part, and the first concave part and the second concave part can be used as bondingpads for external electric connection, so that the metal sheet can be suitable for various application scenes and is convenient to weld, the welding area can be increased through the first concave part and the second concave pa