Products & Services

Q: What material are luminous sign panels made of? Is modified polystyrene good?

Qianbei luminous sign panels use modified polystyrene (PS) virgin material, one formula per product. PS is lightweight, light-transmissive, tough and shatter-resistant, the ideal material for luminous sign panels, backed by a 1 to 2 year no-yellowing warranty, suitable for bulk signs and light boxes.

Flagship Product Wanbei Luminous Sign Panel

PRODUCT 01 · FLAGSHIP

Wanbei Luminous Sign Panel Fear Fading? Choose Wanbei

Qianbei's flagship brand — Wanbei Luminous Sign Panels, manufactured with a new process and formula, 100% virgin material. Comes with a 2-year no-yellowing warranty, definitively solving the industry-wide problem of panel yellowing and fading.

Featured on CCTV Spring Gala, products exported to 87+ countries. Richer color palette to meet premium customization demands. "Fear fading? Choose Wanbei" has become an industry consensus.

2yr No-Yellowing Warranty
100% Virgin Material
Rich Color Options
High Light Transmission
No Deformation
Excellent Toughness

PRODUCT 02 · CLASSIC

Qianbei Luminous Sign Panel Great Value · 1yr No-Yellowing

Qianbei's classic product line, manufactured with premium raw materials and proven processes. 1-year no-yellowing warranty. Consistent color, excellent toughness, and impact resistance — reducing transit damage rates. Fast heat dissipation, can withstand temperatures up to 70-80°C.

Standard colors: Red · White · Yellow — covering mainstream advertising sign requirements. Widely used in brand stores, commercial buildings, hotels and restaurants. The cost-effective choice.

1yr No-Yellowing
70-80°C Heat Resistant
Standard: Red·White·Yellow
Fast Heat Dissipation
High Toughness
Best Value

Classic Choice Qianbei Luminous Panel

COMPARISON

Wanbei vs Qianbei Panels

Choose the right panel for your needs

Wanbei

Flagship Brand

Qianbei

Classic Choice

No-Yellowing Warranty

2 Years ★★★

1 Year ★★

Color Options

Rich · Full Spectrum ★★★

Standard: Red · White · Yellow ★★

Material

100% Virgin New Material

Heat Resistance

70-80°C

Best For

Premium projects, custom colors

Mainstream signage, budget-conscious

2024 NEW

PRODUCT 03 · NEW 2024

Dual-Color Mini Character Panel Revolutionary 2024 Launch

Major 2024 new product — the Dual-Color Mini Character Panel uses one-piece molding technology. No bonding, no painting, fewer LED strips required. Completely transforms the traditional mini character fabrication process, significantly improving efficiency and reducing costs.

Special formula for mini character base and face panels. No odor when engraving, no material sticking to the router bit — an exceptional processing experience.

One-Piece Molding
No Bonding
No Painting
Fewer LED Strips
Clean Engraving
Ultimate Value

PRODUCT 04

Qianbei Dubang Board

The star product in premium advertising signage. Heat-bendable for UV printing, saving labor with zero waste. No bonding process — no bubbling, excellent waterproofing. Ideal for complex curved luminous letters and irregular light boxes.

Efficient processing adaptable to various heat-forming requirements, giving designers more creative freedom. Widely used in commercial signage projects for well-known domestic and international brands.

Heat-Bendable UV
Saves Labor
No Bonding
No Bubbling
Waterproof
Curved Forming

Hot Seller Qianbei Dubang Board

Innovative Qianbei Light Guide Panel

PRODUCT 05 · INNOVATIVE

Qianbei Light Guide Panel

Next-generation Qianbei Light Guide Panel using diffusive convex lens + micro-scribing uniform light guide technology — a disruptive innovation. Simple to use and easy to store, it overturns the traditional "thicker is brighter" mindset.

Key performance data: 30% brighter than acrylic; at the same brightness level, saves 1/3 of LED strips compared to acrylic of equal thickness. Uniform light emission with excellent diffusion. No odor during engraving, no material sticking. Lighter specific gravity reduces installation load risks. 100% virgin material.

+30% vs Acrylic
Saves 1/3 LEDs
Uniform Light
Clean Engraving
Lightweight
100% Virgin Material

PRODUCT 06

Black/White · Blue/White Boards

True colors that never fade — the ultimate value choice. Black/White: blacker by day, brighter by night. Blue/White: bluer by day, brighter by night. Even backlighting with excellent results — the economical solution for small luminous signs and standard signage.

Manufactured with virgin material for lasting color stability. Two-tone combination design eliminates the need for painting, greatly simplifying production steps and reducing costs.

True Colors
Never Fades
Ultimate Value
Even Backlighting
No Painting Needed
Virgin Material

Best Value Black/White Blue/White Boards

Supporting

PRODUCT 07 · SUPPORTING

Base Board Series

Qianbei's base board series includes back-lit base boards, neon base boards, mini character base boards, and white organic boards. All made from premium engraving-grade virgin material, guaranteeing clean routing with no sticking, high transparency, and durable protective film.

Special formulations ensure perfect compatibility with face panels. Excellent backlighting with no surface wrinkling. One-piece construction saves laminating time and boosts overall fabrication efficiency.

Premium Virgin Material
No Router Sticking
High Transparency
Durable Film
One-Piece Construction
No Wrinkling

QUALITY DATA

Performance Metrics

Data-driven quality you can trust

30% Brighter

Our Light Guide Panel is 30% brighter than conventional acrylic. At equal brightness, save 1/3 of LED strips — significant cost reduction.

2-Year No-Yellowing

Wanbei panels come with a 2-year no-yellowing warranty. New process and formula definitively resolve the industry-wide yellowing problem.

70-80°C Heat Resistant

Fast heat dissipation allows operation in temperatures up to 70-80°C. Suitable for demanding indoor and outdoor environments.

Tough & Impact-Resistant

100% virgin material ensures excellent toughness and impact resistance, significantly reducing transit damage rates.

MATERIAL SCIENCE

Sign Panel Materials: Modified Polystyrene (PS) vs Acrylic

Why Qianbei luminous sign panels use modified polystyrene (PS) as the base material

Modified polystyrene (PS) is one of the most common base materials for luminous sign panels and advertising boards. Instead of recycled or blended material, Qianbei insists on 100% virgin material, one formula per product, giving panels advantages of light weight, even light transmission, easy coloring, high toughness and shatter resistance — solving the industry's "yellowing & fading" pain point.

Compared with acrylic (PMMA / plexiglass): acrylic has higher light transmission and a premium look but is brittle and breaks easily in transit; Qianbei light guide panels use a modified PS base, 30% brighter than traditional acrylic and saving 1/3 of LED strips at equal brightness — a more economical high-transmission solution for large luminous signs and light boxes.

Material Performance

PS

Lightweight · Tough · Shatter-resistant

+30%

Light guide brightness vs acrylic

-1/3

LED strips at equal brightness

100%

Virgin material

FAQ

Luminous Sign Panels · Advertising Boards — FAQ

Common questions about materials, process and customization

What material are luminous sign panels made of? Is modified polystyrene good?

Qianbei luminous sign panels use modified polystyrene (PS) virgin material, one formula per product. PS is lightweight, light-transmissive, tough and shatter-resistant — the ideal material for luminous sign panels; backed by a 1–2 year no-yellowing warranty, suitable for bulk signs and light boxes.

How to choose between luminous sign panels and acrylic boards?

Choose acrylic (plexiglass) for maximum light transmission and premium feel; choose modified polystyrene sign panels for cost-effectiveness, impact resistance and safe shipping. Qianbei light guide panels are 30% brighter than traditional acrylic — a cost-effective alternative to acrylic light boxes.

Can I wholesale or customize advertising boards?

Yes. Qianbei supports advertising board wholesale and custom OEM, with 300+ agents in China and exports to 87+ countries. Luminous sign panels, light guide panels, Dubang boards, B/W boards and mini-character panels can be customized in color and specification.