Optoma S331 DLP Projector (Open Box, 3,200 – 3,400 Lumens)

Description

Optoma S331 DLP Projector (Open Box) — 3,400 Lumens, 22,000:1 Contrast, Dual HDMI, MHL Support

Introduction

The Optoma S331 DLP Projector is a versatile, high-brightness projector tailored for both business and educational environments. Compact and lightweight, this projector delivers vibrant image quality, excellent connectivity, and high reliability—all packed into a design that’s easy to set up and transport.

Whether you’re giving presentations in a brightly lit conference room or teaching in a classroom with windows wide open, the Optoma S331 DLP Projector ensures that your content is always visible and sharp. Now available as an Open Box unit, this projector offers the same exceptional features at a more accessible price—making it an ideal choice for budget-conscious users who don’t want to compromise on performance.

Design & Build

The Optoma S331 DLP Projector exterior is as professional as its internal capabilities. Sleek and matte-black, it features a low-profile chassis with tactile controls on the top panel and well-labeled input ports on the rear. At just over 2 kg, it’s lightweight enough for mobile presentations and compact enough to fit in tight spaces, from small meeting rooms to home offices.

Despite its minimal footprint, it includes everything you’d expect from a professional-grade projector: keystone correction, manual focus, zoom lens, and robust lamp housing. An intuitive control layout ensures a smooth setup process, even for users new to projection systems.

Visual Performance

Visual quality is at the heart of the Optoma S331 DLP Projector appeal. Thanks to its 3,400 ANSI lumens of brightness, the projector can perform well even under moderate to strong ambient light. Whether you’re projecting spreadsheets, charts, or video content, the brightness output remains consistent and vivid.

The 22,000:1 contrast ratio enhances shadow detail and color depth, ensuring text appears crisp and graphics are well-defined. While the native resolution is SVGA (800 × 600)—modest by today’s home theater standards—it is more than sufficient for most classroom, meeting, and general-purpose uses.

The Optoma S331 DLP Projector also uses BrilliantColor™ DLP technology, which significantly improves color accuracy and vibrancy compared to traditional LCD projectors in the same range.

Connectivity & Inputs

The Optoma S331 DLP Projector is equipped with a wide range of connectivity options to meet modern multimedia needs. It features:

• 2 × HDMI 1.4a ports, one of which supports MHL (Mobile High-Definition Link)—allowing you to directly connect compatible smartphones and tablets.

• A USB-A port provides power for HDMI dongles like Chromecast or Amazon Fire TV Stick.

• 3.5mm audio output to connect external speakers or PA systems for larger venues.

• VGA, composite video, and RS-232 ports for legacy connectivity.

This variety of inputs makes it compatible with virtually all modern laptops, media players, and mobile devices, giving you plug-and-play convenience for any event or meeting.

Ease of Use

Setting up the Optoma S331 DLP Projector is a quick process. Its ±40° vertical keystone correction helps you square the image even if the projector isn’t perfectly centered, while the 1.1x zoom gives you flexibility in positioning. Whether mounted on a ceiling or placed on a table, it adjusts easily to different environments.

Menu navigation is straightforward thanks to an on-device keypad and included remote. And once you’ve configured your settings, auto power-off and AV mute functions help conserve lamp life and reduce energy usage.

3D Ready

The Optoma S331 DLP Projector is Full 3D compatible, supporting content from 3D Blu-ray players, broadcast systems, and game consoles. Pair it with compatible 3D glasses, and you’re ready to bring immersive visuals into classrooms or small group settings—ideal for STEM instruction or dynamic media presentations.

Lamp Life & Cost Efficiency

The long-lasting lamp is another strong selling point of the S331. With up to 10,000 hours of lamp life in Eco+ mode, this projector is designed for prolonged use without frequent maintenance. That translates to fewer interruptions and reduced operational cost over time.

If you’re planning to use the projector daily in school or corporate settings, this becomes an essential factor for ROI.

Open Box Advantage

Choosing the Open Box variant of the Optoma S331 DLP Projector gives you the same trusted performance with added cost savings. Open Box items are typically unused returns, showroom displays, or units repackaged due to damaged external packaging.

Most Open Box S331 units come with:

• Full functionality and original features

• Manufacturer warranty (partial or full, depending on source)

• All original accessories (remote, power cable, lens cap)

This makes it a smart option for institutions or professionals looking to equip multiple rooms or teams without exceeding their budget.

Use Cases

For Educators

Project lesson content, interactive activities, and educational videos with clear visibility—even in bright classrooms.

For Business Professionals

Display high-impact presentations, financial charts, and promotional media during client meetings or team briefings.

For Event Planners

Quick setup, MHL support, and high brightness make it ideal for wedding slideshows, seminars, and temporary installations.

For Budget-Conscious Users

If you need reliable projection performance at an affordable price, the S331’s open-box option provides unmatched value.

Specifications

• Model: Optoma S331 DLP Projector (Open Box)

• Projection Technology: DLP

• Native Resolution: SVGA (800 × 600)

• Brightness: 3,400 ANSI lumens

• Contrast Ratio: 22,000:1

• Aspect Ratio: 4:3 (native), supports 16:9

• Zoom: 1.1x manual zoom

• Keystone Correction: Vertical ±40°

• Inputs:

  • 2 × HDMI 1.4a (one with MHL)

  • 1 × VGA

  • 1 × Composite video

  • 1 × USB-A (power output)

  • 1 × 3.5mm audio out

  • 1 × RS-232 (control)

• 3D Support: Yes (via HDMI, 144Hz)

• Noise Level: ~29 dB (Eco mode)

• Lamp Life: Up to 10,000 hours (Eco+ mode)

• Dimensions: 298 × 230 × 96 mm

• Weight: 2.17 kg

• Accessories (typically included):

  • Remote control

  • Power cable

  • User manual

• Warranty (Open Box): Varies—check with retailer

Summary

The Optoma S331 DLP Projector delivers powerful, portable projection with features designed for real-world usage. With its high brightness, dual HDMI ports (including MHL), long lamp life, and Full 3D support, it’s an excellent choice for both educational and business environments. The open-box variant offers even more value, maintaining full functionality at a reduced price.

Whether you’re presenting in classrooms, leading business meetings, or showcasing media in temporary setups, the Optoma S331 DLP Projector offers performance, reliability, and savings in one professional package.

Links

• Manufacturer’s Official Product Page:
  Optoma Global – S331 Product Overview

• Radox Kenya Product Listing:
  Optoma S331 DLP Projector