Outline
- Introduction
- How Does the WiFi Version Enable Real‑Time Smart Lighting Control?
- Why are the Bluetooth-enabled Photocontrollers Ideal for Commercial Lighting?
- How Does ZigBee Photocontrol Receptacles Offer Robust Networking for Industrial Use?
- What Makes NB‑IoT Suitable for Remote Smart City Applications?
- Why LoRaWAN is Suitable for Large-Scale, Low-Power Applications?
- Why Is LTE Cat.1 a Balanced Solution for Mobility and Performance?
- How Will 5G Transform the Capabilities of Long‑Join Smart Photocells?
- Which Communication Protocol Best Fits Your Application Scenario?
- Final Words
Looking for a smart lighting control that matches your specific communication needs? Long-Join offers a full lineup based on the Zhaga standard.
From WiFi to 5G, each model supports a unique protocol. These photosensors are designed for flexibility, reliability, and smart city compatibility. No matter what your need is, there is something for everyone.
Here is a detailed breakdown of each version to help you with your choice.
How Does the WiFi Version Enable Real‑Time Smart Lighting Control?
WiFi allows photocontrol receptacles to respond instantly. It supports high-speed data, remote access, and cloud integration. Users can control, schedule, and monitor lights from anywhere using a phone or browser.
Long‑Join’s JL‑719WB uses this to offer real-time updates, remote diagnostics, and firmware upgrades over the air. It’s ideal for dynamic, responsive lighting needs.
Key Features of JL‑719WB
JL‑719WB supports both WiFi and Bluetooth. WiFi enables cloud control, while Bluetooth offers local setup and debugging. It delivers 10–50 Mbps—fast enough for real-time lighting in campuses, malls, and factories. The Zhaga Book 18 interface ensures smooth plug-ins with modern fixtures. Here is a table outlining the technical details of JL-719WB.
| Specification | Details | Specification | Details |
| Power Supply | 120–277 VAC (Zhaga standard) | Communications | IEEE 802.11b/g/n (WiFi) + Bluetooth LE |
| Humidity Range | 5% to 99% | Coverage | Typical indoor/urban WiFi range |
| Operating temperature | -40℃~+70℃ | Remote Update | Support OTA |
Advantages
- Directly connects to phones, tablets, or routers—no gateway needed.
- Easy and fast to deploy.
- Supports OTA updates for remote fixes and improvements.
- Reduces on-site maintenance time.
- Works well for both cloud-based and offline lighting systems.
Why are the Bluetooth-enabled Photocontrollers Ideal for Commercial Lighting?
Light sensors are a smart choice for commercial lighting. They use low power and allow quick control through mobile apps. Models like JL‑711B and JL‑721B bring these advantages together for efficient and simplified deployment in commercial spaces.
Key Features of JL‑711B and JL‑721B
They use ultra‑low power Bluetooth 5.1. Mesh networking is supported for large device groups. Furthermore, the direct mobile control works via smartphone or tablet apps. This makes them perfect for short-range setups like retail and office lighting. Here is a technical comparison of JL‑711B and JL‑721B.
| Specification | JL‑711B | JL‑721B |
| Power Usage | 12V/5mA；24V/6mA | 12V/10mA；24V/11mA |
| Range (Line-of-sight) | ~30 m | ~50 m |
| Dimming Type | Type：0~10V | DALI2.0 |
| Ideal Deployment | Small retail or office zones | Larger commercial spaces |
Advantages
- No gateway is needed—phones talk directly to the photocells.
- Mesh support ensures synchronized lighting across multiple fixtures.
- Lower hardware cost and no central hub reduce total deployment expenses.
How Does ZigBee Photocontrol Receptacles Offer Robust Networking for Industrial Use?
Industrial sites need resilient and extensive lighting control. ZigBee excels with self‑healing mesh and long battery life. It scales to thousands of nodes, all working seamlessly together. Below are discussed two Zigbee-supported photocells.
Features Of JL‑711G and JL‑721G Offer
They feature mesh networking with self‑organizing relays. This extends indoor coverage to 100–300 m by hopping data across nodes. They also boast ultra‑low power usage, achieving over five years of battery life on small cells.
Advantages
- Their mesh design resists single‑point failures and reroutes around interference.
- They are reliable in electrically noisy industrial sites.
- They also support mainstream smart‑home systems like Philips Hue, offering broad ecosystem compatibility.
What Makes NB‑IoT Suitable for Remote Smart City Applications?
Need deep-coverage, low-power communication for smart city sensors? NB‑IoT excels here, and so does the JL‑721NP model. It delivers rural/urban penetration, low data use, and long battery life. LongJoin JL-721NP photosensor employs NB-IoT protocols to offer a seamless lighting experience.
Key Features
The JL‑721NP uses LTE Cat. NB (Narrowband IoT) to connect to cellular towers over 10 km away in rural or hard-to-reach areas. It performs reliably even through dense materials—like concrete or underground locations—ensuring consistent connectivity.
Optimized for small data volumes (typically <1 MB/day), the device draws just 0.5 W per month, enabling years of operation with minimal power input—ideal for infrastructure with limited maintenance.
Here is a table detailing the technical specification of JL-721NP.
| Parameter | Specification |
| Coverage Range | Up to 10 km (rural), ~1 km (urban and indoor) |
| Data Volume | Optimized for <1 MB/day |
| Power Consumption | ~0.5 W/month (~13 μW idle; ~200 mW active) |
| Gateway Required | No—connects directly to carrier’s NB-IoT base station |
| Use Case Fit | Ideal for street lighting, environmental sensors, and infrastructure monitoring |
| Signal Penetration | Strong—works in basements, tunnels, or metal-clad enclosures |
| support special function | Support GPS positioning |
| how to upgrade this | Support DFOTA remote software upgrade |
Advantages
- Operates directly over existing telecom LTE networks—no need for local hubs or custom gateways, reducing setup complexity.
- Maintains stable connections inside metal housings, underground vaults, or remote installations.
- Narrowband communication avoids heavy data charges and keeps network congestion to a minimum.
- It is perfect for remote asset monitoring due to low maintenance and stable data.
Why LoRaWAN is Suitable for Large-Scale, Low-Power Applications?
LoRaWAN uses unlicensed ISM bands and Chirp Spread Spectrum modulation. It handles small packets over long distances. In urban and rural areas this could be up to 15 km and 2–5 km respectively. Devices sleep most of the time to save energy. This makes it a top choice for large-scale IoT systems needing years of battery life.
Features Of LoRaWAN
- LoRaWAN operates on free spectrum—no expensive licenses.
- The star-of-stars topology lets gateways relay signals from many nodes.
- Data rates are modest (0.3–50 kbps), yet good enough for telemetry.
- Combined with spread spectrum, it offers high interference resistance.
Why Is LoRaWAN Ideal for Smart City?
Gateways scale easily to hundreds of nodes per area. Battery life can reach 10 years thanks to ultra-low power draw. It suits environmental monitoring, waste management, asset tracking, and lighting. Deployment is cost-effective—no SIMs or cellular fees needed. All these aspects make LoRaWAN a perfect fit for smart cities.
Why Is LTE Cat.1 a Balanced Solution for Mobility and Performance?
LTE Cat.1 offers a solid balance between speed, mobility, and cost. It supports medium data rates with reliable 4G coverage, making it ideal for moving devices like vehicle-based lighting. Long-Join’s JL-712G3L leverages this for stable performance without the high expense of 5G.
Key Features of JL‑712G3L
This street light photocell provides enhanced bandwidth. This supports firmware updates, remote diagnostics, and video-level monitoring. Its latency ranges between 50–100 ms, enabling near-real-time reaction. The universal 4G module ensures compatibility with most global carrier bands. Here is a table outlining other key specifications of JL712G3L.
| Feature | Specification | Feature | Specification |
| Uplink Speed | Up to 5 Mbps | Downlink Speed | Up to 10 Mbps |
| Latency | ~50–100 ms | Mobility | Supports 120 km/h device movement |
| Network Compatibility | Standard global LTE bands | Gateway Requirement | None (direct carrier connection) |
| Use Case | Vehicle lighting, mobile tracking, and remote diagnostics |
Advantages Of LTE Cat.1 Compared to Other IoT Protocols
- Cheaper than Cat.4/5G but faster and more responsive than NB‑IoT or LoRa.
- It balances cost and capability, avoiding high data plan fees.
- Mobility support suits fleet management, emergency lighting, and portable equipment.
- Fits both urban and suburban deployments with strong signal coverage on 4G networks.
How Will 5G Transform the Capabilities of Long‑Join Smart Photocells?
Looking for ultra-fast, low-latency control in smart lighting? 5G enables real-time responses in milliseconds. The JL‑5G photocell (under development) leverages 5G’s massive device density and slicing to manage thousands of fixtures per km².
It paves the way for advanced use cases like V2X, AR lighting effects, and infrastructure-level integration in smart cities.
What Key Features Will the 5G Smart Photocell Offer?
It will support ultra-reliable low-latency communication (URLLC)—down to 1 ms delays—perfect for synchronized lighting effects or safety alerts. Peak throughput aims for multi-gigabit speeds, ideal for AR/VR integration or live data streams. Network slicing allows prioritizing lighting control over less critical traffic—ensuring reliability.
Unique Advantages Of 5G Photocells
- They allow real-time coordination via V2X communications.
- Scalable to millions of devices in high-density urban areas—ideal for public spaces.
- Edge compatibility reduces cloud load, enabling faster local decision-making and greater data security.
Which Communication Protocol Best Fits Your Application Scenario?
| Protocol | Best Use | Core Strength |
| WiFi | Indoor, real-time scenes | High bandwidth, OTA updates |
| Bluetooth | Short-range commercial zones | Low power, phone control |
| ZigBee | Industrial automation | Mesh stability, interference resistance |
| NB‑IoT | Smart city & remote lighting | Wide coverage, ultra-low data |
| LoRaWAN | Environmental & asset networks | Massive scale, low cost |
| LTE Cat.1 | Mobile/vehicle systems | Medium data, high mobility |
| 5G | Next-gen intelligent cities | Ultra-low latency, high density |
Final Words
Long-Join’s Zhaga smart photocells offer versatile connectivity for every smart lighting need. From WiFi to 5G, each model is tailored for specific environments and performance goals. For dependable supply and expert guidance, Chi-Swear is a trusted partner in delivering genuine Long-Join solutions.
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