A telescopic plant light comprises a plurality of light bars and a drive device. The light bars are arranged side by side. Every adjacent two of the light bars are connected by a linkage telescopic mechanism to move toward each other or to move away from each other. The drive device is electrically connected to each of the light bars. Through the linkage telescopic mechanism connected between every adjacent two of the light bars, the distance between every adjacent two of the light bars is adjustable according to needs. In normal use, the distance between every adjacent two of the light bars can be increased. When not in use, the light bars are moved to be close together, so as to effectively reduce the space occupied by the product. It is convenient for storage, packaging and transportation. The product is very convenient to use.

The present invention is a device for improving power efficiency of a grow light for plants which includes a scissor extension, a base and a control device having a cable, wherein the control device controls the available cable length of the cable. One end of the scissor extension is connected to the control device, the other end connected to the base. The cable also connects the control device and the base. The base is suspended below the control device by the scissor extension and the cable. The control device controls the distance between the control device and the base by changing the available cable length, wherein a sensing device and a light fixture are connected below the base, and the control device controls the distance according to the relative position between the sensing device and a plant below measured by the sensing device.

The present invention is a device for improving power efficiency of a grow light for plants which includes a scissor extension, a base and a control device having a cable, wherein the control device controls the available cable length of the cable. One end of the scissor extension is connected to the control device, the other end connected to the base. The cable also connects the control device and the base. The base is suspended below the control device by the scissor extension and the cable. The control device controls the distance between the control device and the base by changing the available cable length, wherein a sensing device and a light fixture are connected below the base, and the control device controls the distance according to the relative position between the sensing device and a plant below measured by the sensing device.

A portable music stand extender may include extendable arms constructed and arranged to expand and retract. The portable music stand extender may extend such that a user may position books, sheets, or printed paper in an upright position for ease of visibility. The portable music stand extender may retract when not in use to reduce the size of the extender and increase portability.

A portable music stand extender may include extendable arms constructed and arranged to expand and retract. The portable music stand extender may extend such that a user may position books, sheets, or printed paper in an upright position for ease of visibility. The portable music stand extender may retract when not in use to reduce the size of the extender and increase portability.

The adjustable lamp is used to achieve different lighting schemes or configurations for video, photography or multimedia purposes, even from just one lamp. The adjustable lamp has more than one lighting element or group of bulbs, meaning that the bulbs are separated in independent groups. The position of each lighting element can be adjusted via its' adjustable mechanism, which allows the user to configure the position of the lighting elements in the lamp to achieve different lighting configurations or schemes. The overall effective size of the lamp ca be changed as well as the direction of the light of each separate element, which creates different lighting results with the same lamp. The adjustable lamp can be mounted on any support or stand, including directly to the camera using a DSLR rig or other accessory.

The adjustable lamp is used to achieve different lighting schemes or configurations for video, photography or multimedia purposes, even from just one lamp. The adjustable lamp has more than one lighting element or group of bulbs, meaning that the bulbs are separated in independent groups. The position of each lighting element can be adjusted via its' adjustable mechanism, which allows the user to configure the position of the lighting elements in the lamp to achieve different lighting configurations or schemes. The overall effective size of the lamp ca be changed as well as the direction of the light of each separate element, which creates different lighting results with the same lamp. The adjustable lamp can be mounted on any support or stand, including directly to the camera using a DSLR rig or other accessory.

Provided is a light engine of a lamp. The light engine includes a number of light engine modules, and a support frame for movably mounting the light engine modules, where each light engine module comprises one or more light sources. The support frame includes a number of movable components, the movable components of the support frame are mechanically engaged to the light engine modules, such that mechanical motion of the movable components of the support frame relative to each other can cause the motion of the light engine modules relative to each other. In addition, a lamp with a light engine is provided.

Provided is a light engine of a lamp. The light engine includes a number of light engine modules, and a support frame for movably mounting the light engine modules, where each light engine module comprises one or more light sources. The support frame includes a number of movable components, the movable components of the support frame are mechanically engaged to the light engine modules, such that mechanical motion of the movable components of the support frame relative to each other can cause the motion of the light engine modules relative to each other. In addition, a lamp with a light engine is provided.

According to the present disclosure, a projector lift is provided to raise and lower a projector from the ceiling. The projector lift includes a first mount normally coupled to the ceiling, a second mount supporting the projector, a driver configured to raise and lower the second mount and projector, and a stabilizer extending between the first and second mounts.