Multi-length edge-lit LED module family Choose one Edge-Lit LED Module for Light Boxes platform for compact through large-format perimeter lighting. The 3.5W, 7W and 21W rigid side-lighting bars install inside the frame and project light across SEG fabric or translucent graphics. Sizes: 170mm / 370mm / 965mm Optics: 10°×60° lens for controlled edge-to-edge illumination Ordering: select wattage, color temperature and pack quantity Power: DC24V constant-voltage power supply required Edge Lighting for Slim Light Boxes A DC24V edge-lit LED module designed for light boxes where conventional backlighting is difficult to fit. Available in 3.5W, 7W and 21W, with corresponding module lengths for different display sizes. The narrow linear format allows installers to position the light source along the edge of the light box and direct light across the graphic surface. ETL Listed for North American applications, with CRI 90+ and multiple CCT options. Why Use These LED Modules? Edge and side illumination — designed for applications where LEDs are positioned along the edge or side of a display. ETL Listed — independently tested for North American lighting applications. Multiple power options — available in 3.5W, 7W, and 21W to match different display sizes and brightness requirements. Multiple lengths — 170mm, 370mm, and 965mm to fit your installation. DC24V constant-voltage design — suitable for professional signage and display lighting systems. Flexible installation — advertising light boxes, SEG displays, display cabinets and custom illuminated graphics. Module-based layout — easier to plan and replace than conventional continuous lighting. Choose the Module by Length Module Length Output Best For 3.5W 170mm 350lm Small / compact light boxes 7W 370mm 700lm Medium display frames 21W 965mm 2100lm Large-format light boxes Key Specs at a Glance Spec 3.5W / 170mm 7W / 370mm 21W / 965mm Wattage 3.5W ±10% 7W ±10% 21W ±10% Lumens 350lm ±10% 700lm ±10% 2100lm ±10% LED Qty 3 PCS 6 PCS 18 PCS Dimensions 170×21.5×13mm 370×21.5×13mm 965×21.5×13mm Beam Angle 10°×60° CRI ≥90 (Ra90) Color Temperature 2800–3200K / 3700–4300K / 4700–5300K / 6500–7500K Input Voltage DC24V Dimming Non-Dimmable Flicker Free No Lifespan 50,000 hours Working Temp -20°C to 50°C Certifications ETL Listed, CE, RoHS Power Supply DC24V constant-voltage power supply required. Driver not included. Typical Applications Advertising light boxes SEG fabric displays Exhibition light boxes Illuminated display cabinets Retail display graphics Backlit advertising displays Custom signage illumination Also Available in Other Wattages Need a different output for your lightbox size? We offer a full range of DC24V LED modules: 12W Backlit Module — MODULAP & SEG fabric lightboxes, plug-in snap connector, 1320lm 20W Rigid LED Light Bar — Large lightboxes 100cm+, 2200lm, UL listed for major venues Read our full wattage selection guide → Shipping & Delivery Details Estimated Delivery 8–18 Business Days Carrier FedEx / DHL Express Coverage Worldwide — Free Shipping Ships within 2–5 business days of order confirmation Customs-friendly commercial invoice included Factory direct — no middleman markup Not sure which module fits your light box? Contact us with your display dimensions. Need bulk pricing? View Wholesale & Volume Pricing.