LED Light Box Technical Specifications

This guide is for B2B buyers who need to specify an LED light box clearly before requesting a quote. A usable specification should define the frame, lighting, electrical system, graphic, installation, environment and packing—not just “size + quantity.”

The 8 Specification Groups Every Buyer Should Define

Group	What to specify	Why it matters
1. Physical	Overall size, visible size, profile depth, frame material, finish, single/double sided	Controls fit, rigidity, appearance and shipping
2. Graphic	SEG fabric, acrylic, poster, tension fabric, print method, replaceability	Controls fit, maintenance and campaign changes
3. Optical	Lighting architecture, luminance/illuminance method, uniformity, CCT, CRI	Controls how the display actually looks
4. Electrical	Input voltage, output voltage, total power, driver/PSU, plug or hard-wire	Controls compatibility and serviceability
5. Installation	Wall, hanging, freestanding, projecting, mounting hardware, cable exit	Prevents site-installation surprises
6. Environment	Indoor/outdoor, required IP, ambient exposure, service access	Prevents unsupported “weatherproof” assumptions
7. Packing	Carton/case/crate, packed dimensions, net/gross weight, labeling	Controls freight, handling and rollout accuracy
8. Commercial / Compliance	MOQ, sample, lead time, warranty scope, destination-specific documentation	Controls procurement risk and schedule

1. Overall Size vs Visible Graphic Size

Do not use one number for both. The overall size includes the frame; the visible size is the illuminated or viewable graphic area. For replacement graphics and built-in retail fixtures, the difference matters. Drawings should show both.

2. Frame Profile Depth

Profile depth influences lighting geometry, component clearance, rigidity, visual appearance and shipping. A shallower profile can be desirable for wall installations, but it should not be selected without checking the finished size and lighting architecture.

When comparing quotations, ask suppliers to state the actual extrusion/profile used for the quoted size rather than describing the unit only as “ultra-thin” or “slim.”

3. Edge-Lit vs Direct / Backlit

Factor	Edge-lit	Direct / backlit
Typical design goal	Thinner profile where optical design allows	Direct rear illumination for suitable depths/sizes
Key engineering question	Can the light-guide / edge system maintain acceptable uniformity at this size?	Is LED spacing and frame depth sufficient to avoid visible hotspots?
Service question	How are LEDs/light guide/power components accessed?	Can LED modules and driver be serviced after installation?
Buyer action	Compare actual test method, not just “super bright” claims	Confirm depth, LED layout and visual acceptance criteria

4. Brightness: Ask What Is Actually Being Measured

Suppliers may use the word “brightness” for different measurements. Technically, luminance is normally expressed in cd/m² (nits) and describes light coming from a surface, while illuminance is expressed in lux and describes light arriving at a surface. If a quotation gives a number, ask what instrument, distance or test grid was used.

For purchasing, the most important question is often not the highest number—it is whether the finished graphic has an acceptable and repeatable appearance for the application.

5. Illumination Uniformity

“Even lighting” is too vague for a technical specification. A buyer can ask how uniformity is checked: number of measurement points, center vs edge readings, minimum/average or minimum/maximum ratio, and whether the final printed graphic is installed during the visual inspection.

• Define the test area or grid.
• Record the measuring instrument and test distance where applicable.
• Agree how visible hotspots, dark bands or edge shadowing will be judged.
• For rollout projects, define whether batch-to-batch visual consistency is required.

6. CCT and CRI

CCT (correlated color temperature) describes whether the white light appears warmer or cooler and is expressed in Kelvin. CRI (color rendering index) indicates how naturally colors are rendered under the light source. Retail brands may care about these because the same printed graphic can look different under different white points.

Do not assume a default CCT/CRI is suitable for every project. If visual consistency matters, write the required value or acceptable tolerance into the specification and confirm the supplier can document it for the quoted configuration.

7. LED Layout, Pitch and Heat Management

LED spacing, frame depth and diffuser/graphic distance work together. Tight spacing may improve visual smoothness but can increase component count and power. Large spacing can reduce cost but may increase hotspot risk if the system is too shallow.

For custom engineering, ask how LEDs are fixed to the structure, how heat is transferred away from the modules and how a failed module can be accessed. These questions are more useful than a generic “long life LED” statement.

8. Power Consumption and Driver / PSU

A technical quotation should state the input voltage, driver/output voltage where relevant, total power for the finished unit, and how the power supply is installed. For large systems, also confirm whether multiple drivers/circuits are used.

• Destination country and mains voltage
• Plug type or hard-wiring requirement
• Driver / PSU location and service access
• Dimming requirement, if any
• Cable length and exit direction where installation is constrained

9. Graphic System

The graphic specification should match the frame. For SEG systems, confirm the artwork template, finished fabric size and silicone edge. For acrylic or poster systems, define the face material/thickness and how the graphic is loaded or replaced.

10. Single-Sided vs Double-Sided

Double-sided construction changes the frame, lighting, power and often the mounting method. A freestanding or hanging double-sided system should be specified from the beginning; it is not simply a second graphic added to a single-sided box.

11. Indoor vs Outdoor

Do not treat “outdoor” as a marketing adjective. Define whether the installation is fully exposed, sheltered or semi-exposed, and state the required IP rating if the project has one. The exact enclosure, cable entry, drainage, face material, coating and driver protection should be reviewed for the quoted SKU.

12. Mounting and Structural Interface

• Wall-mounted: wall type, fixing points, frame clearance and cable exit
• Suspended: suspension points, cable routing and local load review
• Freestanding: base/feet, stability, floor space and transport
• Projecting sign: bracket, wall substrate, local wind/load requirement
• Built-in fixture: recess/opening size, access panel and ventilation

13. Packing Dimensions Matter as Much as Product Dimensions

For international B2B orders, freight can change the economics of a light box project. Ask for packed length, width, height and gross weight—not just net product weight. Large systems may be split into sections to reduce transport length.

14. Compliance: Make It SKU-Specific

CE, UL, ETL, FCC, RoHS or other documentation should never be assumed across an entire website. Tell the supplier which market and project standard applies, then verify which document belongs to the exact driver, electrical system or finished product being quoted.

15. A Practical LED Light Box RFQ Template

Product type	SEG / snap frame / acrylic / magnetic / outdoor / trade show / other
Overall size	W × H × D
Quantity	Units per size / per location
Viewing	Single or double sided
Installation	Wall / hanging / freestanding / projecting / built-in
Environment	Indoor / sheltered outdoor / fully exposed
Optical requirement	CCT / CRI / brightness-uniformity requirement if specified
Electrical	Country, voltage, plug or hard-wire
Graphics	Artwork ready? replacement graphics needed?
Destination	Country / city / warehouse
Deadline	Sample date / production delivery / event date
Compliance	Required documents / standards

16. Common Specification Mistakes

• Requesting “high brightness” without defining the measurement method.
• Selecting the thinnest frame without checking size and uniformity.
• Forgetting visible graphic size vs overall frame size.
• Assuming every product on the website has the same certification.
• Ignoring driver location and service access.
• Quoting a multi-store rollout without store-by-store size and electrical data.
• Calling a product “outdoor” without defining exposure and IP requirement.
• Ignoring packed dimensions until after the order is placed.

17. How BrandMateDisplay Uses This Specification in a Project

For custom projects, the objective is to turn the buyer’s brief into a clear production basis. We review the dimensions, frame system, lighting, graphic, electrical configuration, installation and packing before the order is released. When a value is not yet confirmed, it should remain an open project requirement rather than being replaced by an unsupported generic claim.

Related Product & Proof Pages

• LED SEG Light Box Manufacturer
• Trade Show Light Box Manufacturer
• Outdoor Double-Sided LED Signage Manufacturer
• LED Light Box Factory Tour
• LED Light Box Quality Control

Send Us Your Specification

If your project is not fully specified yet, send the information you already have. We can identify the missing decisions before quotation instead of guessing them.