Foldable Plant Growth Light with Central Power Box

The problem

Horticultural lighting fixtures operate in environments where water vapor, nutrient mist, and high humidity are constant. In many conventional plant lamps, the power supply and dimming electronics are mounted externally or attached directly to the light bars. Over time, moisture reaches these components, which can lead to corrosion, short circuits, or failure of the control boards. Additionally, large fixed-frame grow lights are difficult to ship and store because their rigid structures take up significant volume, increasing freight costs for buyers who purchase in bulk.

The solution

This utility model addresses those issues by placing the sensitive electrical components inside a central structural element.

1. A main frame assembly and a sub-frame assembly, built with the same structure, form the body of the lamp. Each assembly consists of two oppositely arranged main borders (1) or sub-borders (2).
2. At the opposing ends of these borders, connecting ends (201) are installed. These ends allow the two frame assemblies to be rotatably connected through a connecting beam (3), enabling the entire fixture to fold.
3. The connecting beam acts as the central power box. It comprises a beam column (301) and sealed end covers (302) fixed to both ends of the beam column by bolts.
4. Inside the beam column, a DC constant current distributor (304) and a dimming controller (305) are installed. The sealed end covers isolate these components from the outside humid environment.
5. Light bar frames (4) are fixed between the borders at equal distances from top to bottom to hold the individual light strips.
6. The opposite ends of the frames are closed by waterproof end covers (5), and internal wiring routes through the hollow shafts of the hinges into the frames.

Who it is for

• Commercial greenhouse operators who need reliable lighting that withstands high-humidity conditions without frequent electronic failures.
• Indoor vertical farm brands looking for fixtures that fold down to reduce shipping volume and simplify installation between tight rack levels.
• Horticultural lighting wholesalers sourcing products with integrated drivers to offer simpler plug-and-play setups to retail growers.
• Amazon sellers in the garden category seeking differentiated grow lights with a sealed power compartment and a folding mechanism for easier consumer packaging.

How it works

The main parts

Operating steps

1. Unfold the fixture - Rotate the main frame and sub-frame outward from the connecting beam until they lie flat. The hollow rotating shafts (2012) inside the hinged end caps (2011) pivot within the sleeves (3022) of the sealed end covers (302).
2. Connect power - Plug the commercial power cord into the power protection switch circuit (303) on the back of the beam column (301).
3. Distribute electricity - The switch circuit feeds the DC constant current distributor (304). The distributor uses a splitter (309) to send power through two conductive cables (306).
4. Route internally - The cables pass through the wire holes (3023) in the sleeves, travel through the hollow rotating shafts (2012), and enter the threading channels (2013) to reach the PCB tapping circuit boards inside the main and sub-borders. Needle-type terminals welded to the boards connect to each light bar frame (4).
5. Adjust brightness - Use the dimming circuit panel (6) on the sub-frame. It sends data via a transmission cable (307) to the dimming controller (305) inside the beam, which then signals the distributor (304) through a signal line (308) to adjust the current.

Applications

Commercial greenhouses

Greenhouse operators run lighting during dark winter months when condensation is heavy. Placing the driver and dimmer inside the sealed central beam prevents moisture from reaching the electronics, reducing maintenance stops across long rows of crops.

Indoor vertical farms

Vertical farming racks have limited clearance between shelves. A foldable fixture can be collapsed, slid into narrow spaces, and unfolded into position, making installation faster than handling rigid, single-piece bars.

Retail grow light kits

Home growers buying kits online often struggle with bulky packaging. The folding mechanism reduces the box size for e-commerce fulfillment, while the integrated power box means the user does not need to hang a separate heavy driver.

Nursery propagation rooms

Propagation requires consistent light levels controlled by timers or environmental sensors. The external dimming panel connects directly to the sealed internal controller, allowing automated adjustments without exposing the control logic to the high-humidity rooting environment.

Research and university botanical labs

Lab environments require precise, repeatable lighting conditions. The central DC constant current distributor ensures even power delivery to all light bar frames, while the sealed design protects sensitive test parameters from ambient moisture fluctuations.

Where it is less suitable

• High-intensity discharge (HID) replacements requiring massive heat sinks - this frame structure is designed for LED light bars; large thermal masses may exceed the folding hinge capacity.
• Fully submerged aquaculture lighting - the seals protect against humidity and mist, but the patent does not describe submersion ratings.
• Single-bar linear applications - the dual-frame folding design is intended for wide coverage areas, not narrow single-strip setups.