Abstract: A pneumatically switched balloon light comprises a balloon body which has an air inlet; a battery case located in the balloon body, wherein the battery case is provided with two adjacent batteries and an LED light connected with the batteries; a shield body located in the air inlet, wherein one end of the shield body is removably connected with the battery case, and the other end is made with a breather hole; a valve cover arranged in the shield body and separated from the breather hole; and an insulating piece, one end of which is fixedly connected with the valve cover, and the other end is inserted between the batteries; and the shield body is made with the breather hole for the air intake and discharge, and the shield body and the battery case can be directly fixed in the balloon body.

Abstract: A screw type light-emitting device comprises a hollow mounting holder; a screw holder disposed over the mounting holder and threadedly connected with the same; a battery case disposed in the mounting holder and relatively fixed with the same; a battery pack removably disposed in the battery case 30; an LED light disposed at one end of the battery case and extending out of the mounting holder, wherein one of the electrodes of the LED light is electrically connected to the battery pack, and the other electrode extends to between the battery pack and the screw holder; both the LED light and the battery pack are mounted in the battery case, the battery case is mounted in the mounting holder, and the mounting holder is threadedly connected with the screw holder, and the LED light will emit light when the screw holder is rotated into a proper position.

Abstract: Disclosed is an electronic glow stick comprising a stick body which is a tubular body, at least one handle in a plugged connection with an end of the stick body, a battery pack which is disposed in the handle and connected with the handle in a detachable way, and a light emitting element which is connected with the battery pack and electrically connected with batteries in the battery pack. The batteries can charge the light emitting element, and the light emitting element can project light in the stick body such that the stick body glows. The electronic glow stick has advantages of simple structure, low cost and high durability because of no circuit board; additionally, damaged parts can be exchanged instead of replacing the whole unit, thus effectively saving use cost; moreover, the handle is detachably connected with the stick body, so the whole glow stick has diversified structures.

Abstract: A projection lamp with a rolling lamp effect includes an outer housing, which is an inner hollow structure with an opening; a lampshade, which is a light transmitting structure, covering the opening of the outer housing and fixedly connected to the outer housing; a light emitting module, which is fixed in the outer housing through a fixed shaft; and a light condensing ball lens, disposed in the outer housing. A shaft sleeve is disposed on the outer surface of the light condensing ball lens in a protruding way; the light emitting module is positioned in the light condensing ball lens and is fixed in the shaft sleeve; the motor, which is fixedly disposed in the outer housing, is in a transmission connection with the shaft sleeve, and the motor can drive the light condensing ball lens to rotate around the axis of the fixed shaft in the outer housing.