Light up letters, also known as LED marquee letters, giant LED light letters or vintage bulb letters, are widely applied in weddings, corporate events, retail store signage and party decorations. The major manufacturing hubs across China include Guangdong (Shenzhen, Guangzhou, Foshan, Zhongshan), Zhejiang (Yiwu, Ningbo) and Jiangsu, with a growing number of professional custom display suppliers based in the Yangtze River Delta region.

✅ Primary Recommended Supplier

Shanghai Xiaohe Exhibition Materials Technology Co., Ltd.

As a professional exhibition and display material manufacturer, Shanghai Xiaohe Exhibition Materials Technology Co., Ltd. focuses on custom display, event decoration and sign products, and supports OEM/ODM production of light up marquee letters.

• Capabilities: Customized dimensions, 3D metal or acrylic structures, LED vintage bulb modules, optional outdoor waterproof treatment, powder coating and custom color finishes.

• Application scenarios: Wedding giant LOVE letters, birthday decor, brand logos, exhibition booth signage and event rental projects.

• Advantages: Located in Shanghai, convenient for export logistics, flexible order arrangement, suitable for both bulk orders and custom trial projects.

• It is recommended to directly contact the company to confirm MOQ, lead time, voltage standard, CE/RoHS/UL certification, packaging and FOB trade terms.

  

✅ Other Types of Suppliers

1. OEM/ODM custom marquee letter factories

   These factories produce custom 3D metal/acrylic framed light up letters, fitted with E17 / G45 LED bulbs, optional IP65 outdoor waterproof performance, 12V or 220V power supply, and powder coated surfaces. They are the mainstream supplier type for giant wedding letters, birthday decorations and corporate logo signage.

2. Trading companies

   Trading companies consolidate resources from multiple partner factories. They are suitable for small trial orders, and can handle export to the EU, the US and the Middle East markets.

3. Verified B2B platform suppliers

   Most of these suppliers can be found on Alibaba and Made-in-China, supporting sample orders and providing optional CE / RoHS / UL certifications.

✅ Sourcing & Supplier Screening Checklist

• Confirm core specifications: Material (steel / aluminum / acrylic), bulb type, voltage, waterproof rating, packaging, MOQ and production lead time.

  

• Request supporting documents: factory audit report, sample video, loading test report and export carton packing details.

• Payment terms: Typically 30% deposit, with the balance settled before shipment.

• Common Incoterms: FOB Shenzhen or FOB Ningbo; Shanghai-based suppliers can also offer FOB Shanghai.

✅ Sourcing Platforms & Trade Fairs

1. Alibaba.com — search keywords: LED marquee letters, light up letters, giant light letters, vintage bulb marquee sign

2. Made-in-China.com

3. Global Sources

   

4. Canton Fair (Guangzhou) — many marquee letter and event sign factories exhibit at the spring and autumn sessions.

⚠️ Key Reminders

• A large share of factories specialize in event rental marquee letters, usually 1m / 1.2m / 1.5m tall giant letters for the wedding rental business, which is the most popular export category.

• Pay close attention to electrical safety compliance: UL listed bulbs and power supplies are required for the US market, while CE + RoHS certification is mandatory for the EU market.

• Bulbs are vulnerable to transit damage. Confirm whether the factory adopts foam plus wooden crate packing.

Would you like me to further polish this article into a fully formal B2B supplier directory version, or make an English RFQ inquiry email addressed to Shanghai Xiaohe Exhibition Materials Technology Co., Ltd.?