How Many Watts per Square Meter for a Lightbox?

Frequently Asked Questions

Q: How do I choose the right solution for my project?
Start by defining your budget, installation environment (indoor vs outdoor), and how long you expect the display to last. If you are unsure, send us your drawings and dimensions, and our engineers will recommend the best option within 24 hours.

Q: What is the minimum order quantity?
Standard items have no MOQ. Custom colors, custom sizes, and private label packaging usually require 500–1000 pieces depending on the product. Sample orders are always welcome before bulk production.

Q: How long is the lead time?
Standard stock items ship within 3–5 working days. Custom production takes 15–25 days depending on quantity and tooling. We can also rush orders for urgent trade shows if needed.

Q: Do you ship worldwide?
Yes. We export to 40+ countries including the USA, Germany, UK, Australia, and the Middle East. We can ship by sea (FCL/LCL), air, or express courier. We handle export documentation, customs declaration, and commercial invoice preparation.

Practical Tips Before You Order

Before placing an order, always confirm three things: first, double-check your exact dimensions and corner angles against your space. Second, ask for a physical sample before mass production—what looks good on screen may feel different in person. Third, plan for spare parts (LED strips, drivers, edge strips) at the same time as your main order, because reordering small spare parts later usually costs more than the parts themselves.

For long-term projects, we recommend keeping a detailed spec sheet for every installation: what size frame, what color strip, what LED color temperature, and which driver version. This makes future replacements and maintenance much faster. EEYUN has been manufacturing SEG lightboxes, aluminum profiles, and LED strips in Hangzhou, China since 2010, and we support OEM/ODM for distributors and brand owners worldwide.

---

The Rule of Thumb

For standard backlit SEG fabric (25–30% translucency), plan for 30–50 watts per square meter of illuminated area. Shallow boxes (≤100mm) use 40–50 W/m²; deeper boxes (150–200mm) use 30–40 W/m² because light has more distance to diffuse.

Do Not Over-Power

More watts do not always mean a better-looking graphic. Once the fabric surface hits 800–1000 nits, extra LEDs waste electricity and create hotspots. Under-powering (below 20 W/m²) makes colors look dull and gray.

Account for Power Supply Loss

Add 20% headroom for driver inefficiency and voltage drop. If your design needs 200W of LED strip, order a 250W driver. Running a driver at 100% load shortens its life to 1–2 years instead of 5.