What Are Examples of Low Voltage Work? A Complete Guide for Home and Business Owners
If you’ve ever heard the term low voltage work and wondered what it means, you’re not alone. Low voltage systems are everywhere — in homes, offices, and commercial buildings across California. From your Wi-Fi network and security cameras to doorbells and landscape lighting, low voltage systems power many of the technologies we rely on daily.
In this guide, we’ll explain what low voltage work includes, why it’s important, and some real-world examples that help you understand where it applies. Our experienced low voltage technicians in Los Angeles handle a wide range of electrical installations, ensuring reliability and safety in every project.
What Is Low Voltage Work?
Low voltage work refers to any electrical installation that operates on 50 volts (V) or less. These systems carry far less power than standard electrical wiring, which typically runs on 120V or 240V. Because of this, low voltage wiring is considered safer, more energy-efficient, and ideal for data and communication systems.
Common voltage levels for low voltage systems include 12V, 24V, and 48V, depending on the type of equipment.
Low voltage work is often performed by C-7 licensed contractors in California — professionals who specialize in low voltage systems such as networking, alarms, and communications.
Why Low Voltage Systems Matter
Low voltage cabling forms the backbone of modern technology. From high-speed internet to security and automation, these systems make homes and workplaces more connected and efficient.
Here’s why low voltage systems are essential:
- Safety: They use less current, reducing fire and shock risks.
- Energy efficiency: Ideal for systems that run continuously, like cameras and sensors.
- Flexibility: Easy to expand or upgrade without major rewiring.
- Reliability: Provide stable connections for data, audio, and visual signals.
Common Examples of Low Voltage Work
Low voltage covers a wide range of systems and applications. Below are some of the most common examples in both residential and commercial settings.
1. Security and Surveillance Systems
CCTV cameras, alarm panels, motion sensors, and access control systems (like card readers and keypads) all run on low voltage. Professional CCTV installation relies heavily on structured low voltage cabling for power and data transmission.
2. Network and Data Cabling
Your internet and local area network (LAN) depend on Cat5e, Cat6, or fiber optic cables — all part of low voltage work. These cables connect computers, servers, printers, and other devices, ensuring fast, reliable communication throughout your property.
3. Audio/Video Systems
Home theaters, intercom systems, conference room AV setups, and distributed audio systems operate through low voltage wiring. These setups require precise cable routing for clear sound and video signals.
4. Fire Alarm and Life Safety Systems
Low voltage contractors install fire alarm panels, smoke detectors, and emergency notification systems that meet state and national safety codes. In California, these installations must comply with the National Fire Protection Association (NFPA) standards and local building requirements.
5. Access Control and Entry Systems
Key fobs, RFID readers, door strikes, and video entry systems are all powered by low voltage wiring. They help improve building security and streamline employee or resident access.
6. Telecommunication and VoIP Systems
Low voltage wiring supports business phone systems, VoIP setups, and internal communication lines. Structured cabling ensures consistent voice quality and dependable connections.
7. Lighting Control and Smart Home Automation
Smart thermostats, automated lighting, and IoT devices often use 12V or 24V circuits. Low voltage electricians integrate these systems for centralized, app-based control.
8. Landscape and Exterior Lighting
Outdoor lighting, path lights, and garden illumination are usually powered by low voltage transformers. This makes them safer to install outdoors and more energy-efficient to run.
The Difference Between Low Voltage and High Voltage Work
It’s easy to confuse low voltage and standard electrical work, but the difference is significant.
| Type | Voltage Range | Example Systems | Required License |
|---|---|---|---|
| Low Voltage | 0–50 volts | CCTV, networking, alarms, doorbells | C-7 (Low Voltage Systems) |
| High Voltage | 120–240 volts | Lighting circuits, outlets, HVAC, appliances | C-10 (Electrical Contractor) |
If your project involves data, communication, or control systems, you’ll likely need a low voltage contractor, not a standard electrician.
Who Can Perform Low Voltage Work in California?
In California, only contractors with a C-7 Low Voltage Systems License issued by the Contractors State License Board (CSLB) are legally permitted to perform low voltage installations.
These professionals are trained in:
- Structured cabling and fiber optics
- Security and alarm system setup
- Audio, video, and telecommunications wiring
- Network design and testing
- Code compliance and fire safety requirements
Hiring a licensed low voltage contractor ensures your project is compliant, safe, and built to last.
How to Know If You Need Low Voltage Work
You may need low voltage work if you’re:
- Setting up a new office network or data center
- Installing security cameras or alarm systems
- Adding smart home devices or Wi-Fi access points
- Upgrading conference room AV equipment
- Planning landscape lighting or gate control systems
If your system involves communication, control, or monitoring — not standard power — it’s likely a low voltage project. Many of these systems are managed by professionals known as ELV contractors, who focus on extra-low voltage solutions for modern buildings.
Upgrade Your Property with Professional Low Voltage Installation
From high-speed internet cabling to security and automation systems, low voltage installations are the key to modern connectivity. When you choose a licensed low voltage contractor in California, you’ll get a system that’s safe, compliant, and built for long-term performance.
Whether it’s for a home, office, or large commercial facility, professional low voltage work can enhance security, boost efficiency, and prepare your property for the future of technology.
Contact your trusted low voltage installation experts in California today and discover how a professionally designed system can make your space smarter, safer, and more connected.