Abstract: An LED flashlight includes a conductive lamp-shielding barrel, a substrate, a conductive battery housing, a circuit board, and at least two conductive contact bars. When the lamp-shielding barrel is rotated relative to the battery housing to move the substrate toward the circuit board to a first position, a positive contact of the substrate is in electrical contact with one of the conductive contact bars so that the lamp unit emits a light of a first brightness. When the lamp-shielding barrel is further rotated relative to the battery housing to move the substrate toward the circuit board to a second position, the positive contact of the substrate is in electrical contact with both of the conductive contact bars so that the lamp unit emits a light of a second brightness that is different from the first brightness.

Abstract: A flashlight includes a conductive barrel body having annular front and rear end portions spaced apart from each other in an axial direction, and a battery accommodating space extending in the axial direction between the front and rear end portions to accommodate a battery unit therein. A sleeve member is mounted co-axially on the front end portion of the barrel body. A lamp unit is disposed in the sleeve member, and includes a lamp seat and a light bulb mounted removably on the lamp seat. An electrical conductor unit is disposed in the sleeve member between the front end portion of the barrel body and the lamp unit. The conductor unit includes a conductive core member having a first end in electrical contact with the light bulb, and a second end to contact electrically a first electrode of the battery unit inside the battery accommodating space. A dielectric core holding block is formed with an axial core mounting hole, within which the core member is mounted.