Abstract: The disclosure relates to a light board and a spotlight. The light board comprises a circuit board having multiple mounting positions, and lamp beads mounted in the mounting positions, which comprise multiple cool color lamp beads and multiple warm color lamp beads, the cool and warm color lamp beads are configured to form multiple lamp bead rows, which are arranged along a first direction. Each lamp bead row comprises both the cool and warm color lamp beads, a difference between the number of the cool and warm color lamp beads does not exceed 2, a difference between the number of the cool and warm color lamp beads in two adjacent lamp bead rows does not exceed 3, and a total number of cool color lamp beads is equal to that of warm color lamp beads. The technical solution of the disclosure is beneficial to improve lighting effects of lights.

Abstract: The present disclosure discloses a lamp holder, a battery assembly and a supplementary lighting lamp. The lamp holder includes a housing and a rotation assembly rotating relative to the housing, wherein the rotation assembly includes a cover body, a resisting member and an adjusting member moving relative to the cover body, and the housing includes a fastener formed on a first end thereof. The adjusting member moves on the cover body so that the resisting member is resisted against the fastener, thus the rotation assembly is clamped with the housing or separated from the housing. The present disclosure has the advantages of convenient disassembly and good waterproof performance.