China, and specifically Shenzhen, manufactures the large majority of the world’s security cameras — from $20 indoor Wi-Fi cubes to industrial 4K PTZ systems. The category is attractive because margins are real and demand is steady, but it is also where specification abuse is common: a camera listed as “4K” with a cheap sensor, or a “PoE” model that drops packets, produces returns and warranty claims. This guide covers the product range, the parameters that actually matter, the protocols to verify, the certifications, and the QC that separates a good supplier from a reseller.
Product Categories
- Indoor cameras: Wi-Fi cubes, baby monitors, and small dome cameras for home and small business.
- Outdoor bullet cameras: fixed-position, weather-rated, used for perimeter and driveway monitoring.
- Dome cameras: vandal-resistant, ceiling-mounted, common in retail and offices.
- PTZ cameras: pan-tilt-zoom motorized cameras for large areas; higher cost and higher margin.
- Battery and solar cameras: wire-free, growing fast for DIY and off-grid use.
- PoE NVR systems: multi-camera kits with a network video recorder, the traditional B2B package.
- 4G cameras: SIM-connected for sites without fixed broadband.
Core Parameters That Matter
- Resolution: 2MP (1080p), 4MP, 5MP, 8MP (4K). Do not trust marketing; ask for sensor brand and actual pixel count.
- Night vision: infrared distance (e.g., 20m), whether it uses white-light full color at night.
- Video compression: H.265 is standard; H.264 is legacy and wastes storage.
- AI detection: human/vehicle/pet classification vs basic motion detection.
- Weather rating: outdoor cameras must be IP66 or IP67.
- Power: PoE (802.3af/at), 12V DC, or battery capacity (mAh).
Protocols and Platforms
Two buyers get this wrong. First, verify ONVIF compliance: a camera that only talks to its proprietary cloud app will not integrate with an NVR you already own. Second, ask whether the cloud platform is the factory’s own or a generic third-party app; privacy-conscious markets increasingly reject cameras that stream to Chinese servers without a local option. For the EU, GDPR data-processing requirements apply.
RTSP support lets you pull a direct video stream into your own VMS. For a private-label product, also ask how firmware updates are delivered and whether the camera can be reset to your branding.
Certifications
- United States: FCC for radio/Wi-Fi; UL or ETL for safety on mains-powered units.
- Europe: CE (LVD + EMC + RED for wireless), RoHS, REACH.
- UK: UKCA.
- Privacy: GDPR for EU-market cameras; in some markets a visible recording warning sign is legally required on packaging.
QC That Separates Good From Bad
- Image test: compare daytime and night footage against a reference; cheap sensors over-saturate or fail in low light.
- Waterproof test: pressurized water spray on outdoor units for the claimed IP rating.
- App stability: power-cycle, reconnect Wi-Fi, and verify the camera comes back online reliably.
- PoE negotiation: confirm the camera draws stable power through a standard PoE switch.
- Temperature test: outdoor units must pass high and low temperature cycles.
The Shenzhen cluster — Qianhai, Longgang, and the Huaqiangbei component market — is where every part is sourced within an hour’s drive. Visit the factory, not just the booth. A camera brand with no SMT line, no aging room, and no test equipment is a trading company that will not survive a recall.
Choosing Between Branded, OEM, and ODM
The Shenzhen market offers three routes. Branded white label is the fastest: the factory sells you an existing model with your logo, and you get an FCC/CE certificate in a few weeks. OEM lets you change color, packaging, and app skin. ODM means a custom board, lens, or enclosure — this adds tooling and months of lead time.
For first-time buyers, start with an existing proven model rather than a custom design. The reason is not cost: it is that firmware, apps, and cloud infrastructure are where most cheap cameras fail. A factory that can show you an installed base of tens of thousands of units, a working app with regular updates, and a 24-month warranty is worth more than a $2 cheaper BOM.
Finally, ask whether the camera supports local storage (microSD) and whether the cloud is optional. In privacy-sensitive markets such as Germany and California, customers increasingly reject cameras that require a cloud account and stream video overseas. A camera that records locally and streams only when the owner asks is the more defensible product.
For buyers selling into the US, also plan for network registration requirements: the FCC has increasingly required Wi-Fi/IoT devices to go through a registration process, and certain cameras are in scope. Confirm with your certification body that the model will remain listed. Treat the camera not as a single device but as part of a cloud service — pick a factory whose app and firmware will still be supported in three years.
Visiting the factory is the single highest-value step you can take: it separates the real brand with SMT lines and aging rooms from the trading company that will not survive a recall.