The Lorex LNB3321-C and LNB3321B bullet cameras are nearly identical in core features like 4K resolution and night vision, but differ in model suffixes, firmware, and regional compatibility. While they share most specs, subtle variations may affect integration with specific Lorex systems.
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When it comes to home and business security, choosing the right surveillance camera can feel like navigating a maze of similar-sounding models. Two cameras that often cause confusion are the **Lorex LNB3321-C** and the **Lorex LNB3321B** bullet cameras. At first glance, they look almost identical—same sleek bullet design, same 4K resolution, same night vision capabilities. But are they really the same? Or are there hidden differences that could impact your security setup?
If you’re shopping for a new camera or upgrading an existing Lorex system, this question matters. Even small differences in model numbers can affect compatibility, performance, and long-term usability. Maybe you’ve seen both models listed online with slightly different prices or availability. Or perhaps you’re trying to replace a camera and aren’t sure if the “-C” version will work with your current NVR. These are real concerns—and they deserve clear answers.
In this article, we’ll dive deep into the Lorex LNB3321-C and LNB3321B bullet cameras. We’ll compare their specs, explore their design and features, and help you understand whether they’re truly interchangeable. Whether you’re a homeowner, a small business owner, or a tech-savvy installer, this guide will give you the confidence to make the right choice.
Key Takeaways
- Similar Core Specs: Both cameras offer 4K Ultra HD resolution, color night vision, and weather resistance (IP67), making them ideal for outdoor surveillance.
- Model Suffix Differences: The “-C” and “B” suffixes indicate regional or firmware variations, not major hardware changes.
- Compatibility Matters: The LNB3321-C is often designed for newer Lorex NVR systems, while the LNB3321B may work better with older models.
- Firmware and Software: Slight firmware differences can affect smart features like AI detection or app integration.
- Installation and Mounting: Both use the same mounting hardware and wiring, ensuring easy replacement or upgrade.
- Warranty and Support: Check your region—warranty terms and customer support may vary between models.
- Best Use Case: Choose based on your existing Lorex system; compatibility trumps minor spec differences.
📑 Table of Contents
Understanding Lorex Model Naming Conventions
Before we get into the nitty-gritty of camera specs, it helps to understand how Lorex names its products. Lorex, like many electronics manufacturers, uses a structured model numbering system to differentiate between camera versions, regions, and compatibility. The “LNB” in both model names stands for “Lorex Network Bullet,” indicating that these are wired IP cameras with a bullet-style housing.
The numbers that follow—“3321”—refer to the camera’s core hardware platform. This means both the LNB3321-C and LNB3321B are built on the same internal architecture. They likely share the same image sensor, lens, and processing chip. The real differences come in the suffixes: “-C” and “B.” These letters typically indicate variations in firmware, regional certification, or compatibility with specific NVR (Network Video Recorder) systems.
For example, the “-C” suffix often denotes a newer or updated version, possibly with improved firmware for better AI detection or enhanced app integration. The “B” version might be an earlier release, still fully functional but potentially lacking the latest software optimizations. These distinctions are subtle but important—especially if you’re integrating the camera into a larger Lorex surveillance ecosystem.
Side-by-Side Spec Comparison: LNB3321-C vs. LNB3321B
Visual guide about Is Lorex Lnb3321-c Bullet Camera the Same as Lorex Lnb3321b
Image source: lorex.ca
Let’s get into the numbers. Here’s a detailed breakdown of the key specifications for both cameras.
Resolution and Image Quality
Both the LNB3321-C and LNB3321B deliver **4K Ultra HD resolution** (3840 x 2160 pixels), which is four times the detail of standard 1080p. This means you’ll get crisp, clear footage that makes it easy to identify faces, license plates, and other important details—even from a distance.
They both use a 1/2.7” progressive scan CMOS sensor, which is a high-quality sensor known for good low-light performance and color accuracy. The lens is an 8mm fixed focal length, offering a wide field of view (around 90–100 degrees), perfect for monitoring driveways, backyards, or storefronts.
Night Vision Capabilities
One of the standout features of both models is **Color Night Vision**. Unlike traditional infrared (IR) night vision that produces black-and-white images, these cameras use built-in white LED lights to illuminate the scene in full color—even in complete darkness. This is a huge advantage for security, as color footage provides more context (like clothing color or vehicle paint) than monochrome.
The night vision range is approximately 100 feet (30 meters), which is more than enough for most residential and small commercial properties. The LEDs activate automatically when light levels drop, ensuring 24/7 visibility.
Weather Resistance and Durability
Both cameras are rated **IP67**, meaning they’re fully protected against dust and can withstand immersion in water up to 1 meter for 30 minutes. This makes them ideal for outdoor use in rain, snow, or extreme temperatures. The housing is made of durable aluminum with a corrosion-resistant coating, so they’ll hold up well in harsh environments.
Audio and Two-Way Communication
Neither model includes built-in microphones or speakers, so **two-way audio is not supported**. If you need to communicate with someone at your camera (like a delivery person), you’ll need to pair it with a Lorex NVR that supports audio input/output and use an external microphone and speaker.
Power and Connectivity
Both cameras use **Power over Ethernet (PoE)**, meaning they receive both power and data through a single Ethernet cable. This simplifies installation and reduces clutter. They’re compatible with standard PoE switches or Lorex NVRs with built-in PoE ports.
They support **H.265 video compression**, which reduces file sizes without sacrificing quality—helping you save on storage space and bandwidth.
Smart Features and AI Detection
Here’s where things get interesting. Both cameras support **AI-powered person and vehicle detection**, which helps reduce false alerts from things like moving trees or animals. However, the LNB3321-C may have more advanced firmware that improves the accuracy of these detections or adds new features like package detection or facial recognition (depending on your NVR and app version).
The LNB3321B, being an older model, might not receive the latest firmware updates or smart features as quickly. If you’re using a newer Lorex NVR with advanced AI capabilities, the “-C” version is more likely to be fully compatible.
Compatibility with Lorex NVR Systems
One of the most important factors when choosing between these two cameras is **compatibility with your existing Lorex NVR**.
LNB3321-C: Designed for Newer Systems
The LNB3321-C is often bundled with newer Lorex 4K NVR systems, such as the LNR600X or LNR800X series. It’s optimized for these systems and may include firmware enhancements that improve performance, such as faster streaming, better motion detection, or smoother integration with the Lorex app.
If you’re building a new system or upgrading to a recent NVR, the “-C” version is the safer bet. It’s more likely to support future firmware updates and new features.
LNB3321B: Still Compatible, But May Lag
The LNB3321B is fully compatible with most Lorex NVRs, including older models like the LNR400 or LNR600 series. However, it may not take full advantage of newer NVR features, such as enhanced AI analytics or cloud integration.
That said, if you already own a Lorex system and are replacing a camera, the LNB3321B will likely work just fine. The core functionality—recording, motion alerts, remote viewing—remains the same.
Mixing and Matching Cameras
Can you mix LNB3321-C and LNB3321B cameras on the same NVR? In most cases, **yes**. Lorex NVRs are designed to support multiple camera models as long as they use the same protocol (ONVIF or Lorex proprietary). However, for optimal performance and feature consistency, it’s best to use matching models.
Installation and Setup: Are They the Same?
From an installation standpoint, the LNB3321-C and LNB3321B are virtually identical. Both come with the same mounting bracket, screws, and weatherproof cable gland. They use the same PoE setup, so you can plug either one into your NVR or PoE switch without any changes.
Mounting Options
The bullet design allows for flexible mounting—on walls, ceilings, or soffits. The adjustable bracket lets you tilt and swivel the camera to get the perfect angle. Whether you’re installing it over a front door, in a parking lot, or along a fence line, the process is straightforward.
Cable Management
Both cameras have a built-in cable management system. The Ethernet cable connects to a weatherproof gland at the base of the camera, keeping connections dry and secure. This is especially important for outdoor installations where moisture can cause corrosion.
Initial Setup
Setup is done through the Lorex NVR interface or the Lorex Home app. Once connected, the camera is automatically detected and configured. You can adjust settings like motion zones, recording schedules, and alert preferences.
The only potential difference in setup comes from firmware. The LNB3321-C may prompt for a firmware update during initial setup, while the LNB3321B might not—especially if it’s an older unit.
Performance in Real-World Conditions
Let’s talk about how these cameras perform in everyday use.
Daytime Video Quality
In daylight, both cameras deliver stunning 4K footage. Colors are vibrant, details are sharp, and the wide dynamic range (WDR) helps balance bright skies and shaded areas. Whether you’re monitoring a busy street or a quiet backyard, the image quality is excellent.
Low-Light and Night Performance
The Color Night Vision is a game-changer. Instead of grainy black-and-white footage, you get full-color video at night. The white LEDs provide even illumination, and the camera adjusts exposure automatically to avoid overexposure.
One user reported that the LNB3321-C seemed to activate the LEDs slightly faster than the LNB3321B in very low light, but the difference was minimal. Both performed well in total darkness.
Motion Detection and Alerts
AI detection works well on both models. You can set up custom motion zones and receive alerts only when a person or vehicle enters the area. This reduces false alarms from animals or moving foliage.
However, some users noted that the LNB3321-C had slightly fewer false positives, likely due to improved firmware. If you live in an area with lots of wildlife or windy conditions, this could be a deciding factor.
Reliability and Uptime
Both cameras are built to last. With no moving parts and a solid aluminum housing, they’re resistant to tampering and weather damage. Users report reliable 24/7 operation with minimal downtime.
Price, Availability, and Warranty
Now, let’s talk about cost and support.
Pricing
The LNB3321-C is typically priced slightly higher than the LNB3321B—usually by $10 to $20. This reflects its newer firmware and potential for future updates. However, prices can vary by retailer and region.
If you find the LNB3321B on sale, it’s still a great value. The core performance is nearly identical.
Availability
The LNB3321-C is more commonly available in North America, especially in bundles with newer NVRs. The LNB3321B may be harder to find new but is still sold by some online retailers and may appear in clearance sections.
Warranty and Support
Lorex offers a **2-year limited warranty** on both models. However, warranty terms can vary by region. For example, Canadian customers may have different support options than U.S. customers.
Always register your camera online to ensure full warranty coverage. If you buy the “-C” version, you may also get priority access to firmware updates and technical support.
Which One Should You Choose?
So, which camera is right for you?
Choose the LNB3321-C If:
- You’re building a new Lorex system with a recent NVR.
- You want the latest firmware and smart features.
- You prioritize future-proofing and software updates.
- You’re willing to pay a small premium for potential performance gains.
Choose the LNB3321B If:
- You’re replacing a camera in an older Lorex system.
- You’re on a tight budget and found a good deal.
- You don’t need the absolute latest AI features.
- You’re confident in the camera’s compatibility with your setup.
Bottom Line
For most users, the differences between the LNB3321-C and LNB3321B are minor. Both are excellent 4K bullet cameras with color night vision, weather resistance, and reliable performance. The choice often comes down to compatibility and future support.
If you’re unsure, check your NVR model and consult Lorex’s compatibility chart. When in doubt, the LNB3321-C is the safer, more future-ready option.
Final Thoughts
The Lorex LNB3321-C and LNB3321B bullet cameras are nearly identical in hardware and performance. They share the same 4K resolution, color night vision, IP67 rating, and PoE connectivity. The differences lie in firmware, regional variants, and compatibility with newer NVR systems.
While the “-C” version may offer slight improvements in AI detection and software support, the “B” model remains a solid, reliable choice—especially for existing Lorex users.
Ultimately, both cameras deliver excellent value and performance for home and business security. The best one for you depends on your specific setup, budget, and long-term needs. Whether you go with the LNB3321-C or LNB3321B, you’re getting a high-quality surveillance solution from a trusted brand.
Frequently Asked Questions
Are the Lorex LNB3321-C and LNB3321B interchangeable?
Yes, in most cases. Both cameras use the same hardware and are compatible with Lorex NVRs. However, the LNB3321-C may offer better firmware support for newer systems.
Can I use the LNB3321-C with an older Lorex NVR?
Yes, but you may miss out on some advanced features. The camera will work for basic recording and viewing, but AI detection and app integration might be limited.
Do both cameras support color night vision?
Yes, both the LNB3321-C and LNB3321B feature color night vision using white LED illumination, providing full-color footage in complete darkness.
Is the LNB3321-C worth the extra cost?
If you have a newer Lorex NVR or want the latest firmware updates, yes. Otherwise, the LNB3321B offers nearly identical performance at a lower price.
Do these cameras require internet to work?
No, they work locally with a Lorex NVR. Internet is only needed for remote viewing via the Lorex app or cloud features.
Can I mix LNB3321-C and LNB3321B cameras on the same system?
Yes, Lorex NVRs support mixed camera models. However, for consistent performance and features, it’s best to use matching cameras.