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31.5" Solar-Powered Color E-Paper Display
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31.5" Solar-Powered Color E-Paper Display

The 31.5-inch Solar-Powered Color E-Paper Display is designed for outdoor information publishing where power access is limited or unavailable. Equipped with a high-efficiency monocrystalline solar panel and 45Ah LiFePO4 battery, it operates completely off-grid without external wiring.

Featuring a QHD 2560×1440 color e-paper screen, the display delivers paper-like readability under direct sunlight while consuming ultra-low power. Its rugged IP65 waterproof and IK08 impact-resistant enclosure ensures reliable performance in parks, transportation hubs, campuses, smart cities, tourist attractions, and commercial districts.

Built for sustainable digital communication, this all-in-one solution combines solar energy, wireless connectivity, and long-lasting durability to reduce installation costs and simplify outdoor deployment.

  • Display Size 31.5 Inch
  • Display Technology Color E-Paper (CMYW)
  • Resolution 2560 × 1440 (QHD)
  • Protection Grade IP65 / IK08
  • Application Smart City, Transportation, Campus, Tourism
  • Solar Panel 1.5m × 1.5m Monocrystalline
  • Battery Battery
  • OEM & ODM Supported
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31.5" Outdoor Solar Powered E-Ink Kiosk — Model S315ECO. Engineered for locations where power wiring is impossible or far too costly to install. A 1.5×1.5m monocrystalline solar panel paired with a 45AH LiFePO4 battery enables completely off-grid operation at zero electricity cost year-round. The CMYW color E-paper screen delivers crisp, print-like visuals readable even under direct midday sunlight without any glare. Deploy anywhere. CE, RoHS, FCC certified. Ready for global shipping.
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Solar-Powered Energy System — The backbone of true off-grid independence for outdoor digital displays. A high-efficiency monocrystalline panel captures daylight for direct operation and simultaneous battery charging. The 45AH LiFePO4 pack stores surplus energy, powering the display through nights and cloudy stretches. Smart management auto-sleepes the unit during extended low-charge periods. Active draw stays below 3.7W, standby at 0.01W. Built for reliability.
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31.5" Color E-Ink Display Technology — Unlike traditional LCD panels that wash out under bright sunlight, this QHD 2560×1440 E-paper screen reflects ambient light for a natural, completely glare-free reading experience from any viewing direction. CMYW four-color particle technology reproduces rich poster-grade visuals across a full 178° viewing angle. Anti-glare AG+UV tempered glass protects the panel surface. Front-lit option available for nighttime use.
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Built for the Harshest Outdoor Conditions — This kiosk shrugs off the severe weather that destroys ordinary digital displays. A fully sealed metal enclosure earns IP65 waterproof and dustproof certification, keeping driving rain and desert sand completely sealed out from all internal components. IK08 impact resistance withstands 5J strikes, making it genuinely vandal-ready. Corrosion-proof finishes and integrated drainage complete the rugged outdoor defense system. Built to last.
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Industry-Leading Ultra-Low Power Consumption — The E-paper bistable effect means the screen draws power only while the image is actively refreshing on the display panel. Once content appears, it stays permanently visible — even after complete power loss — with zero electricity consumption required. Active refresh consumes ≤3.7W versus 80-150W for a comparable LCD display, delivering over 97% energy savings annually. Shutdown power sits at ≤0.001W. Zero waste.
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Two Flexible Content Update Methods — Designed for both fully connected and completely remote off-grid display deployments. Offline sites use a standard USB flash drive: place formatted images, insert into the kiosk port, and the system auto-refreshes in roughly one minute without any network connection. Networked locations leverage WiFi or an optional 4G SIM with the Smart EPD app for instant remote publishing. API and SDK support available for custom CMS.
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Full Technical Specifications & Package Contents — Model S315ECO packs a quad-core ARM processor running Android 7.1, 1GB DDR3 RAM, and 8GB eMMC storage. Standard WiFi 2.4G with Bluetooth 4.0 handles local connectivity; an optional 4G SIM slot adds cellular reach for remote areas. Dual USB 2.0 ports accept flash drives for offline content updates. Ships in a reinforced wooden crate with solar panel, battery, and mounting hardware included. Factory-direct pricing available.
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Application Scenarios

Versatile Outdoor Applications — Deploy this solar-powered E-paper kiosk wherever the electrical grid simply cannot reach your site. Transit agencies use it for real-time bus schedules at roadside stops. Parks install trail maps and eco-guidance boards without trenching cable underground. Retailers place dynamic price displays directly on storefronts. Municipalities post community announcements in remote neighborhoods. One rugged platform for every outdoor need.
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Why Choose BEST?

1.We are a vertically integrated manufacturer maintaining end-to-end control over design, R&D, production, and testing, ensuring stringent quality management and cost efficiency.
2.Custom OEM/ODM solutions produce drawings within 48 hours and functional prototypes within 7 days, scaling from trial to mass production.
3.A 12-step inspection and 72-hour aging process maintains product defect rates below 0.05%.
4.Environmental testing includes waterproof, thermal, vibration, shock, salt spray, and UV exposure validation.
5.Products are FCC, CE, and RoHS certified for international markets.
6.English-speaking engineers offer 24/7 technical support, remote calibration, and firmware upgrades.
7.Dedicated technical managers and ongoing training maintain long-term operational efficiency for partners.
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