The invention discloses a novel tri-proof lamp accessory, and particularly relates to the technical field of illumination, the novel tri-proof lamp accessory comprises four second powerful magnets, the outer surfaces of the four second powerful magnets are jointly provided with an upper shell group, the middle of the upper shell group is provided with a connecting group, and the lower side of the upper shell group is slidably connected with a lower shell group. According to the novel tri-proof lamp accessory, through cooperative use of the first mounting sleeve and the second powerful
magnet block as well as the first mounting groove and the first powerful
magnet block, the first shell and the second shell can be quickly mounted and dismounted, a wire can be conveniently connected with a tri-proof lamp wiring position on an
aluminum substrate, maintenance is more convenient, and the service life of the tri-proof lamp accessory is prolonged. And through cooperative use of a reinforcing
ferrule II and a
polymer sealing ring, the joint of the shell I and the shell II is sealed, the dustproof and waterproof effects are achieved, through a sleeve column, a mounting hole and a threaded groove, the overall mounting and dismounting of the connection group are facilitated, when the connection group is accidentally damaged, the upper shell group does not need to be replaced, and the effect of saving the cost is achieved.