Patent Information & Production OptionsFoldable Plant Growth Light with Central Power Box · Patent CN216307484U

At a glance

What the claims cover, in plain language

Claim 1 - A foldable plant growth lighting lamp with a central power supply box. It has a main frame assembly and a sub-frame assembly of identical structure, each comprising two oppositely arranged borders. Connecting ends are installed at the opposing ends of the borders, and the two assemblies are rotatably connected through these ends and a connecting beam. The connecting beam includes a beam column and sealed end covers fixed by bolts at both ends. Inside the beam column, a DC constant current distributor and a dimming controller are installed. The front surface of the sealed end cover has integrally formed end mounting positions at both symmetrical ends to fit the connecting ends.

Claim 2 - The connecting end includes a hinged end cap sealed to the frame border. A hollow rotating shaft is integrally formed inside the cap near the mounting position. The opposite side of the cap is sealed, and a threading channel communicating with the inside of the frame is formed on the inner side. Claim 3 - A rubber ring is fixed inside the hinged end cap near the mounting position, with arc transitions at its corners. Claim 4 - The sealed end cover and beam column form a sealed connection. A sleeve matching the rotating shaft is integrally formed in the center of the end mounting position, with a threaded hole at its bottom for a bolt. A wire hole with an arc design and rounded inner corners is opened on the side of the sleeve. Claim 5 - Light bar frames for mounting light strips are fixed at equal distances from top to bottom between the main and sub-borders. Claims 6-7 - Further details on the waterproof end covers, PCB tapping circuit boards, needle-type plug-in terminals, dimming circuit panel, and the specific wiring connections between the dimming panel, controller, distributor, splitter, and conductive cables passing through the wire holes and threading channels.

This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.

What this means for US production

This patent was filed only in China and is lapsed (terminated for non-payment of annual fees, recorded 2025-12-19), so it no longer restricts anyone in China either. It has no US or other foreign counterpart.

Two points to settle early:

• Other patents may exist. Horticultural LED lighting is an active patent field covering foldable frames, sealed driver compartments, and specific light-spectrum arrangements. While no foreign patents cite this specific document, competitors hold various US patents on grow-light mechanics, so a freedom-to-operate (FTO) review of the folding hinge and sealed central beam concept is needed before tooling.
• Electrical safety isolation. Because the power distribution and dimming electronics are housed inside a structural beam that also serves as a mechanical hinge, the creepage and clearance distances, as well as the thermal management inside the sealed column, must be engineered specifically for the target wattage.

Customization and manufacturing

What can be customized

Things to plan for (US market)

• UL 1598 / UL 8800 - Standard for luminaires and specific safety requirements for horticultural lighting equipment sold in North America; the sealed internal power box will undergo dielectric voltage-withstand and temperature testing.
• FCC Part 15 - The dimming controller and DC distributor generate switching frequencies that must comply with electromagnetic interference limits.
• DLC Horticultural Lighting Requirements - If targeting utility rebates, the fixture’s photosynthetic photon efficacy (PPE) and spectral distribution must be verified.
• California Prop 65 - Materials used in the rubber rings, PCBs, and powder coatings are screened for listed substances.

How a project runs

1. Inquiry - Target wattage, frame dimensions, spectrum, and quantity.
2. Design - Engineering the beam column extrusion, hinge sleeve tolerances, internal PCB layout, and sealing geometry.
3. Prototype - Machined or soft-tooled samples to verify the folding action, wire routing through the hollow shaft, and thermal performance inside the sealed beam.
4. Pilot run - Assembled units undergo cycle testing on the hinges, moisture ingress checks, and electrical safety pre-tests.
5. Production - Aluminum extrusion, CNC machining of the end covers and sleeves, PCBA assembly for the distributor and controller, LED bar mounting, and final sealing.

Quantities & timeline

The project requires extrusion dies for the beam column and frame borders, CNC fixtures for the hinged end caps and sealed end covers, and custom PCBA layouts for the distributor and dimming controller. Certification testing for horticultural lighting standards takes significant time due to thermal and ingress evaluations. Send us your frame dimensions, target wattage, spectrum requirements, estimated quantity and target price and we will reply with options.

Patent drawings

Drawings reproduced from the public patent document for reference.