Adjustable Arm for LED Desk Lamp - Specifications and Selection Guide

Product Specifications

Technical details and manufacturing context for Adjustable Arm

Definition

The adjustable arm is a key structural component of the Smart LED Desk Lamp that enables users to precisely position the light source. It connects the lamp base to the lamp head, providing multiple degrees of freedom for optimal illumination angles while maintaining stability during adjustments. The arm is typically constructed from aluminum alloy, steel, and plastic, with the aluminum alloy often specified as 6061-T6 per ASTM B221 for corrosion resistance. The arm length ranges from 300 to 600 mm, and the adjustment angle spans 0 to 180 degrees, allowing a wide range of lamp head positions. The load capacity is 1 to 3 kg, and the holding torque at joints is 0.5 to 2.0 N·m, ensuring the arm can support the lamp head and maintain its position. The operating temperature range is -20 to 60 °C in non-condensing environments, and the ingress protection rating is IP20 to IP40 per IEC 60529, indicating indoor use only. The surface finish is anodized with a thickness of 10 to 15 μm. The weight of the arm depends on its length and number of joints, ranging from 0.5 to 1.5 kg. Linear dimensions are held to a tolerance of ±0.5 mm per ISO 2768-m. These parameters are reference ranges for the product family; actual values must be confirmed for the specific model and application. The arm is designed for indoor use and is not intended for outdoor or wet locations. It is a component of a desk lamp and is not a standalone product. For procurement, verify that the arm meets the required specifications and standards for your intended use. The adjustable arm is a critical part for ergonomic lighting, allowing users to direct light where needed, reducing glare and shadows. Its robust construction and smooth adjustment mechanism contribute to the overall functionality and durability of the lamp. When selecting an adjustable arm, consider the weight of the lamp head, the desired range of motion, and the mounting interface. Always consult the manufacturer's documentation for detailed installation and maintenance instructions.

Working Principle

The arm utilizes a combination of pivot joints, tension mechanisms, and sometimes internal springs or counterweights to allow smooth movement while maintaining position once set. Friction-based or locking mechanisms prevent unwanted movement after adjustment. The pivot joints provide rotational freedom, while tension mechanisms, such as springs or friction pads, create resistance that holds the arm in place. Counterweights may be used to balance the load, reducing the effort required to adjust the arm. The holding torque at the joints is a key parameter that determines the arm's ability to stay in position. The arm's design ensures that the lamp head can be positioned precisely and remains stable during use.

Common Materials

Aluminum alloy, Steel, Plastic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Adjustment Angle	0–180 °	Range for lamp head positioning
Arm Length	300–600 mm	Overall length from base to lamp head
Load Capacity	1–3 kg	Maximum weight of lamp head
Torque	0.5–2.0 N·m	Holding torque at joints
Operating Temperature	-20–60 °C	Non-condensing environment
Ingress Protection	IP20–IP40	Indoor use onlyIEC 60529
Material	6061-T6	Aluminum alloy, corrosion resistantASTM B221
Surface Finish	Anodized	Thickness 10–15 μm
Weight	0.5–1.5 kg	Depends on length and joints
Tolerance	±0.5 mm	Linear dimensionsISO 2768-m

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Pivot Joint
Allows rotational movement between arm segments

Material: Steel
Tension Mechanism
Provides resistance to hold position after adjustment

Material: Spring steel
Cable Channel Part
Protects and routes electrical wiring through the arm

Material: Plastic
Arm Structure
The rigid segments the joints connect, carrying the lamp head out to where the user wants it.
Locking Mechanism
Holds the set position so the arm does not creep down under the head's weight.
Counterweight Optional
Balances the head so less effort is needed to reposition the arm.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Adjustable Lighting System

View system integration details

Solar Table Lamps

View system integration details

Manufacturers of Adjustable Arm

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Frequently Asked Questions

What is the adjustment angle range of the adjustable arm?

The adjustment angle range is 0 to 180 degrees, allowing the lamp head to be positioned across a wide arc. However, the actual range may vary by model, so confirm with the manufacturer.

What is the maximum load capacity of the arm?

The load capacity is 1 to 3 kg, which is the maximum weight of the lamp head that the arm can support. Ensure the lamp head weight is within this range for safe operation.

What materials are used in the arm's construction?

The arm is made from aluminum alloy, steel, and plastic. The aluminum alloy is often 6061-T6 per ASTM B221, providing corrosion resistance. Verify the specific materials for your model.

Is the arm suitable for outdoor use?

No, the arm is rated IP20 to IP40 per IEC 60529, indicating indoor use only. It is not designed for outdoor or wet environments.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Not applicable (mechanical component)
other spec:	Max load capacity: 5 kg, Rotation range: 360° horizontal, 180° vertical
temperature:	-20°C to +60°C

Adjustable Arm

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards