Abstract: A method for adapting an LED lamp tube to a fluorescent lamp tube holder, an LED lamp tube holder and an illumination device. The LED lamp tube holder comprises an adaptation bracket and a lamp tube holding clip which is connected to the adaptation bracket. The lamp tube holding clip has a circular-arc cylindrical holding surface, thereby being clamped to the outer wall of a light transmission tube of the LED lamp tube. A cylindrical pin which axially extends from the LED lamp tube holder along the light transmission tube is arranged on the adaptation bracket. The shape of the pin is the same as that of an electrically-conductive pin of the fluorescent lamp tube, thereby enabling the LED lamp tube holder to be arranged in the fluorescent lamp tube holder. The LED lamp tube can be arranged on the basis of the original LED lamp tube holder.

Abstract: A method for adapting an LED lamp tube to a fluorescent lamp tube holder, an LED lamp tube holder and an illumination device. The LED lamp tube holder comprises an adaptation bracket and a lamp tube holding clip which is connected to the adaptation bracket. The lamp tube holding clip has a circular-arc cylindrical holding surface, thereby being clamped to the outer wall of a light transmission tube of the LED lamp tube. A cylindrical pin which axially extends from the LED lamp tube holder along the light transmission tube is arranged on the adaptation bracket. The shape of the pin is the same as that of an electrically-conductive pin of the fluorescent lamp tube, thereby enabling the LED lamp tube holder to be arranged in the fluorescent lamp tube holder. The LED lamp tube can be arranged on the basis of the original LED lamp tube holder.

Abstract: A lighting device for an aquarium includes a sealed waterproof lamp shell and a light string arranged and connected with LED lamps, the light string positioned inside the sealed waterproof lamp shell. Select LED chips (4r,4g and 4b) shooting red, green and blue light respectively, which are assembled or directly inject-formed into an integrated LED lamp, synthetic light shot from the LED lamp is slightly reddish violet, luminous flux ? for three base colors red, green and blue are respectively ?r from 32% to 41%, ?g from 47% to 54% and ?b from 12% to 14%. Illumination effect is improved for the aquatics, and ornamental effect is enhanced.

Abstract: A magnetic scrubber assembly and its design method for cleaning the wall-glass of an aquarium are provided. The center of gravity of the internal scrubbing component is designed underneath its the geometrically horizontal central axes. A product of length Lp from a center of gravity Pp of an internal scrubbing component to a lowest part and the center of gravity P of the internal scrubbing component is smaller than a product of a length Lf from equivalent function point Pf of buoyancy F such that the internal scrubbing component is received to its lowest part. This ensures that the internal scrubbing component can erect automatically after it is lied down. When the internal scrubbing component breaks away from the control of a hand-held scrubbing component, the internal scrubbing component can sink upright, and the magnetic scrubber assembly is restored to the normal operation condition.

Abstract: The present involves magnetic scrubber assembly and its design method for cleaning the wall-glass of an aquarium, the center of gravity of the internal scrubbing component is designed underneath its the geometrically horizontal central axes; the product of the length Lp from the center of gravity Pp of internal scrubbing component to the lowest part and the gravity P of the internal scrubbing component is smaller than the product of the length Lf from equivalent function point Pf of buoyancy F that the internal scrubbing component is received to its lowest part and the buoyancy F that the internal scrubbing component is received, therefore, which can ensure that the internal scrubbing component can erect automatically after it lied down for whatever reasons. When the internal scrubbing component breaks away from the control of hand-hold scrubbing component, the internal scrubbing component can sink upright, and the magnetic scrubber assembly can be conveniently restored to the normal operation condition.

Abstract: A lighting ashtray apparatus using solar energy relates to a new practical apparatus for smokers. It comprises an ash container, wherein a solar energy lighting device is configured on the top of the ash container, the said solar energy lighting device and the said ash container are configured and fixed on the support bracket; the said solar energy lighting device comprises an outer cover, photovoltaic cells, a rechargeable battery, a circuit controlled panel and a illuminant, wherein the photovoltaic cells are embedded on the upper surface of the outer cover, and the said rechargeable battery and the circuit controlled panel are configured inside of the said outer cover, and the said photovoltaic cells are connected to the said circuit controlled panel electrically which is further connected with the said rechargeable battery and the illuminant electrically.

Abstract: A feeder and a feeding method that can protect feedstuff from moisture, comprises a base, a feedstuff box with a feedstuff discharging port which can be driven to rotate; especially the said feedstuff box comprises a flap that can cover the said feedstuff discharging port. The said flap cover can be opened automatically when the feedstuff box rotates to the position that its discharge port is facing downwards, i.e. it is in the discharging status, and will be kept closed when the said discharge port facing upwards, i.e. it is not in the said discharging status. Said feedstuff port flap is assembled onto the feedstuff box by way of a shaft that is parallel to the rotating axial of said feedstuff box, with a counterweight assembled on its heavier side. Inside said feedstuff box comprises at least a rim on its sidewall, so feedstuff will strike with the rim to eliminate agglomeration when rotating.

Abstract: An electric water pump rotating in the correct direction, comprising a water pump body (2) that has a chamber (3), which is basically cylindrical in shape, and a chamber cover (8), which is fitted at the axial outward end of said chamber (3); an impeller (42) is accommodated and rotates inside said chamber (3) coaxially; said impeller (42) includes at least two impeller vanes (45) that project from the impeller disc surface (44) and said impeller vanes (45) bend to the same direction around the rotating axis OO? of said disc surface (44); Assuming V as the volume inside said chamber (3) and v as the volume enveloped by all the said impeller vanes (45) when said impeller (42) rotates, a design can be made about relations of geometrical parameters between volume of said chamber (3) in said electric water pump and said volume enveloped by all the impeller vane (45) rotating inside said chamber (3) to be in the following range, i.e.