LED Plant Growth Light with Adjustable Side Wings

Patent & Production

At a glance

What the claims cover, in plain language

Claim 1 - an LED plant growth lamp comprising a main lamp body and two auxiliary lamp bodies distributed on both sides. They are connected by an adjustable connecting bracket used to regulate the irradiation angle of the auxiliary bodies relative to the main body.

Claim 2 - the bracket consists of a first connecting plate, second connecting plate, rotating shaft, and adjustment knob. The plates overlap and hinge on the shaft. A limit ring groove on the first plate and a limit shaft on the second plate interact, with the knob screwing onto the shaft to lock the angle.

Claim 3 - fixing rivets and knobs allow the bracket ends to be hinged and secured to the lamp bodies. Claim 4 - two sets of brackets are used, one at each end of the side wings. Claim 5 - the main body has a housing with an integrated light source and a first dimmer. Claim 6 - the auxiliary bodies have housings with lamp boards holding detachable LED beads of various wavelengths/color temperatures, controlled by a second dimmer. Claims 7-10 - specify rectangular housing shapes, separate heat sinks with parallel fins, ventilation holes, cooling fans for both main and side units, and independent power supplies for the main and side circuits.

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 in China and has lapsed, so it no longer restricts anyone in China either. The public record shows no US or other foreign counterpart.

Two points to settle early:

• Other patents may exist. The horticulture lighting field is active. One company, Jiaxing Shanpu Lighting Appliance Co., Ltd., holds a later international filing (WO2024245209A1) citing this patent. While this does not imply infringement, it indicates ongoing innovation in this niche. A freedom-to-operate (FTO) review is recommended before tooling to check for any valid US patents covering adjustable multi-arm grow lights.
• Electrical Safety. Unlike mechanical furniture, this device involves mains electricity and thermal management. Compliance with UL standards is critical for US market entry.

Customization and manufacturing

What can be customized

Things to plan for (US market)

• UL 153 / UL 8750 - Standard for luminaires and LED equipment. Essential for retail sales in the US.
• FCC Part 15 - Electromagnetic compatibility testing for digital drivers and controls.
• Energy Star - Optional certification for commercial buyers seeking efficiency incentives.
• California Title 20 - Appliance efficiency regulations if sold in CA.

How a project runs

1. Inquiry - Target wattage, spectrum preference, quantity, and mounting style.
2. Design - Thermal simulation, bracket mechanics, PCB layout, and housing extrusion profile.
3. Prototype - 3D-printed housings for fit checks; functional samples with real LEDs and drivers.
4. Pilot run - Aging tests (thermal stability), drop tests for brackets, electrical safety pre-checks.
5. Production - Aluminum extrusion cutting, CNC machining for brackets, injection molding for plastic parts, potting for electronics, final assembly.

Quantities & timeline

Extrusion dies are required for the housing profiles. Injection molds are needed for the bracket knobs and end caps. Thermal testing takes significant time to ensure fan noise and heat dissipation meet specs. Send us your target wattage, spectrum, quantity and timeline and we will reply with options.

Production notes

Tooling and process

Likely requires aluminum extrusion dies for the main and side housings. Plastic components like the adjustment knobs and end caps typically need injection molds. Electronics must be potted to protect against humidity, a common condition in greenhouses.

Cost drivers

UV-stabilized materials are typically essential for outdoor or greenhouse use to prevent yellowing. Corrosion protection on metal brackets adds cost. Packaging volume affects shipping rates significantly due to the bulky shape.

Prototyping path

Typically, start with 3D-printed parts to verify the bracket geometry and fit. Create a coated tube sample for the housing aesthetic. Conduct UV and spray tests on finishes. Build a functional sample with actual LEDs to test thermal performance before tooling.

What we would change before tooling

We would likely refine the thread engagement of the adjustment knob to prevent stripping during frequent use. Hinge boss wear is a risk; adding metal inserts or reinforcing the plastic pivot point is recommended.

Common failure points

Water ingress in electronics is the primary risk if potting is incomplete. Wind load tipping could occur if mounted outdoors without sufficient ballast. Heat path issues may arise if the fan fails or dust blocks the ventilation holes.

Patent drawings

Drawings reproduced from the public patent document for reference.

Frequently asked questions

How do I adjust the light angle?

Each side wing connects to the main body via a bracket with a central pivot. Loosen the adjustment knob, tilt the wing up or down to your desired position, and tighten the knob to lock it in place.

Can I change the light spectrum?

Yes. The patent describes detachable LED beads on the side lamp boards. In production, these can be swapped for different color temperatures or wavelength mixes (e.g., red/blue for flowering, full-spectrum white for veg).

Is the brightness controllable?

It features independent dimmers. One controls the main central light, and another controls the two side wings. This lets you boost the sides for edge plants without over-lighting the center.

Does it get hot?

The design includes dedicated heat sinks with parallel fins and cooling fans for both the main and side units. Ventilation holes allow airflow. Proper installation ensures heat dissipation.

Is it waterproof?

The patent mentions potted electronics and sealed housings. However, it is primarily designed for indoor/greenhouse use. For outdoor rain exposure, confirm the IP rating during the quote stage.

Why are there two side wings?

They extend the coverage area horizontally. By angling them, you can create a “wall” of light around tall plants or spread light wider over low plants, reducing dark spots compared to a single panel.

Can this design be made and sold in the US?

The patent was filed in China and has lapsed, and the public record shows no US counterpart, so it does not restrict the design in the US or in China. Adjustable grow lights may be covered by other US patents - see Patent & Production - so we recommend a freedom-to-operate check before volume production.

Are you affiliated with the patent owner?

No. IP2M is an independent design and manufacturing service working from the public patent document.

Request a quote

Click Request a Quote below to see our email address - copy it, or open your email app with a ready-made message. Please mention patent CN209399235U in the subject.

Helpful details to include:

• Your company and channel (indoor farm, home garden brand, hydroponics supplier)
• Target wattage and total lumens/PPFD requirements
• Spectrum preference (full spectrum, red/blue, custom)
• Quantity and estimated monthly volume
• Certification needs (UL, FCC, Energy Star)
• Timeline - when you would like samples and the first shipment

You can also reach us at (332) 203-9997.