APPLICATION
LATEST MEWS
- 015V2A USB Charger with CN/US/EU/UK/JP Specifications | USB Charger Head Product & Original Factory Overview
- 025V1A Charger Certified | USB Charger Product and Source Factory Introduction
- 03How to confirm that a power adapter product has genuine CCC certification?
- 04Complete Guide to Power Adapters: From Basic Concepts to Professional Selection | Keyulong Technology
- 05Non-standard Power Adapter vs. Certified Power Adapter: How to Accurately Identify?
- 0612V2A Power Adapter (PSR) – A Cost-Effective Choice, a Reliable Partner for Security Surveillance and LED Lighting

4th Floor, Building 2, QinHui Road, Guxing Community, Xixiang Street, Bao'an District, Shenzhen, China
Security & Surveillance
HomeSecurity & Surveillance
Power Supply Applications in Security & Surveillance
Providing stable power for IP cameras, NVRs, access control systems and more

In security and surveillance systems, the power adapter is a critical yet often overlooked component that ensures stable equipment operation. IP cameras, NVRs, access control systems — their reliable performance depends on a dependable, anti-interference, long-life power adapter. Below is a comprehensive overview of power application solutions and selection references for various security and surveillance devices.
I. Overview of Power Supply Applications for Security & Surveillance Equipment
II. Power Supply Applications for IP Cameras / Network Cameras
2.1 Indoor IP Cameras
Applicable Scenarios: Offices, shopping malls, hotels, home indoor surveillance
2.2 Outdoor IP Cameras
Applicable Scenarios: Campus perimeter, parking lots, construction sites, rural road surveillance
III. Power Supply Applications for NVRs / Network Video Recorders
IV. Power Supply Applications for Access Control Systems
4.1 Access Controllers and Identification Terminals
4.2 Access Control Locks
V. Power Supply Applications for Alarm Systems and Sensors
VI. Power Supply Specification Quick Selection Guide
Plug Types: China, US, EU, UK, Korea, Japan, Australia, etc. | Output Interfaces: 5.5×2.1, 5.5×2.5, Type-C, waterproof aviation connectors, etc. | Cable Lengths: 1.0m / 1.5m / 3m / 5m, etc. All customizable.
VII. Power Supply Selection Recommendations for Different Scenarios
Scenario 1: Small Office / Retail Store Surveillance
Equipment: 4 indoor IP cameras, 1 4-channel NVR
Recommended Power Supply: 12V1A × 4 (individual) or 12V3A × 1 (centralized) + 12V1.5A × 1
Power Requirements: Compact size, full certifications, low standby power
Scenario 2: Large Campus / Factory Surveillance
Equipment: 8 outdoor bullet cameras, 4 high-speed PTZ cameras, 1 16-channel NVR, 2 access control systems
Recommended Power Supply: 12V2A × 8 (wide temp, waterproof) + 12V3A × 4 + 12V3A × 1 + 12V2A × 2
Power Requirements: MTBF ≥ 50,000 hours, full certifications, strong anti-interference, wide temperature operation
Scenario 3: Smart Building / Community Access Control
Equipment: 2 facial recognition access systems, 2 magnetic locks, 2 video doorbells
Recommended Power Supply: 12V1.5A × 2 + 12V2A × 2 + 12V1A × 2
Power Requirements: Output ripple ≤200mV, low standby power, V0 flame-retardant enclosure, full certifications
Scenario 4: Remote Outdoor Surveillance
Equipment: 2 4G wireless cameras, 1 solar power system
Recommended Power Supply: 12V1A (low power, wide temp -20℃~70℃, waterproof)
Power Requirements: High efficiency, low power consumption, waterproof and dustproof, lightning protection, full certifications
VIII. Product Form Factor Description
IX. Certification Information
Security and surveillance equipment is exported to different countries, and power adapters must meet the corresponding market access requirements. Below are some of the certifications we offer. Contact us for more details.
Different countries and regions have different certification requirements for power supplies. Please select the corresponding certified version according to your target market.
Get Your Security & Surveillance Power Solution
Key Account Hotline: 13590301618
Sales Inquiries: 18129821159
Website: www.szkeyulong.com
Search "Keyulong Power" on 1688 | Headquarters Address: Factory Building 401, No. 2 QinHui Road, Guxing Community, Xixiang Street, Bao'an District, Shenzhen


