Guides
Research organized around real installation, storage, subscription and ownership decisions.
PoE vs Wi-Fi Security Cameras: Which System Is Better?
A practical comparison of reliability, installation cost, bandwidth, power, scaling and outage behavior.
Security Camera Storage Calculator
Estimate how many gigabytes or terabytes of storage your cameras need from bitrate, camera count and retention period.
How Much Bandwidth Does a Security Camera Use?
Estimate real security-camera bandwidth from bitrate, resolution, frame rate, codec, camera count and remote viewing.
How Many Security Cameras Can a 100 Mbps Network Handle?
Calculate how many IP cameras fit on a 100 Mbps link without saturating the network, using bitrate and safety margin.
How Long Does a 256GB Card Last in a Security Camera?
Estimate 256GB security-camera retention for 1080p, 2K and 4K recording using bitrate and recording mode.
How Long Does 1TB Last for Security Cameras?
Estimate 1TB of NVR or camera storage by camera count, bitrate, codec and recording schedule.
H.264 vs H.265 for Security Cameras: Storage and Bandwidth Differences
Understand how H.264 and H.265 change surveillance storage, bandwidth, compatibility and recorder load.
15 FPS vs 30 FPS for Security Cameras: Which Is Better?
Compare 15fps and 30fps surveillance video by storage, bandwidth, motion clarity and identification value.
Motion Recording vs Continuous Recording for Security Cameras
Compare motion-only and 24/7 recording by storage, missed-event risk, review speed and evidence quality.
Do Security Cameras Record During a Power Outage?
What keeps recording during an outage depends on camera power, NVR power, network gear, batteries and local storage.
What Size UPS Do You Need for Security Cameras and an NVR?
Size a UPS for an NVR, PoE switch, router and security cameras using actual watts and target runtime.
How Many Security Cameras Can a Gigabit Network Handle?
Estimate how many IP cameras fit on a 1 Gbps network using real camera bitrate, uplink headroom and recorder architecture instead of resolution labels.
What Size PoE Switch Do You Need for 8 Security Cameras?
Size an 8-camera PoE switch by ports, total watt budget, per-port standard, uplink speed and future expansion.
What Size PoE Switch Do You Need for 16 Security Cameras?
Plan a 16-camera PoE network by switch port count, power budget, uplink bandwidth, PTZ load and future capacity.
PoE Power Budget for Security Cameras: How to Calculate It
Calculate security-camera PoE power budget correctly using maximum device draw, total switch watts, per-port standards and planning headroom.
Cat5e vs Cat6 for Security Cameras: Which Cable Should You Run?
Compare Cat5e and Cat6 for PoE security cameras by gigabit bandwidth, cable length, interference, power delivery and installation cost.
How Far Can a PoE Security Camera Run Over Ethernet?
Understand the standard PoE security-camera cable distance, why 100 meters is the normal Ethernet limit and what to do for longer runs.
How Long Does a 4TB Hard Drive Last for Security Cameras?
Estimate 4TB NVR retention by camera count and bitrate for continuous recording, with worked 4-camera, 8-camera and 16-camera examples.
How Long Does an 8TB Hard Drive Last for Security Cameras?
Estimate 8TB NVR retention for 4, 8 and 16 cameras using aggregate bitrate and continuous-recording math.
PoE Injector vs PoE Switch for Security Cameras
Choose between PoE injectors and PoE switches for one camera, several cameras, long runs and retrofit installations.
Should Security Cameras Be on a Separate VLAN?
A practical guide to isolating IP security cameras on a VLAN while preserving NVR recording, remote access and device management.
What Focal Length Is Best for a Driveway Security Camera?
Choose driveway security-camera focal length from lane width, target distance, sensor size and the level of detail you actually need.
2.8mm vs 4mm Security Camera Lens: Which Should You Choose?
Compare 2.8mm and 4mm security-camera lenses by field of view, scene width, pixel density and best use cases.
Best Security Camera Height for Face Identification
Plan mounting height for facial detail without creating an overly steep angle that hides useful facial features.
How Far Can a 4K Security Camera Identify a Face?
Estimate 4K face-identification distance from field of view, horizontal pixels, scene width and real-world detail loss.
Best Security Camera Angle for License Plates in a Driveway
Plan driveway plate capture around lane width, horizontal and vertical angle, shutter speed, distance and dedicated framing.
Varifocal vs Fixed-Lens Security Cameras
Compare fixed and varifocal security-camera lenses by installation flexibility, field of view, cost and evidence quality.
What Field of View Is Best for a Front Door Security Camera?
Choose front-door camera field of view for facial detail, package coverage and approach visibility without wasting pixels.
What Field of View Is Best for a Driveway Security Camera?
Choose driveway camera field of view from lane width, vehicle approach, face/plate goals and target distance.
How High Should a Driveway Security Camera Be Mounted?
Choose driveway camera mounting height by tamper resistance, face angle, vehicle geometry and target distance.
What Security Camera Lens Do You Need for 50 Feet?
Choose a security-camera lens for a 50-foot target using sensor size, scene width, resolution and identification requirements.
Security Cameras That Work on a LAN Without Internet
How to build a security-camera system that keeps live view and recording on the local network when internet access is blocked or unavailable.
Can You Use an ONVIF Camera Without a Cloud Account?
What ONVIF does and does not guarantee when you want a security camera that can be managed locally without relying on a cloud account.
RTSP Security Cameras Without a Subscription
How RTSP can support local live view and recording without recurring cloud storage fees, plus what to verify before buying.
Frigate Camera Requirements: RTSP, Substreams and ONVIF Explained
Choose cameras for Frigate by stream stability, RTSP access, substreams, codecs, local credentials and optional ONVIF support.
How to Choose a Security Camera for Home Assistant Without Cloud Dependence
A local-first Home Assistant camera checklist covering local credentials, RTSP/ONVIF, events, NVR integration and blocked-internet behavior.
Can NVR Security Cameras Be Hacked If They Are Isolated From the Internet?
How VLANs, firewall rules and NVR-only camera networks reduce attack surface without making a surveillance system magically invulnerable.
How to Record Security Cameras to a NAS Without a Dedicated NVR
Use RTSP/ONVIF and NAS surveillance software to record IP cameras without buying a vendor-specific NVR.
Synology Surveillance Station vs a Dedicated NVR for Home Security Cameras
Compare a Synology-based camera recorder with a dedicated NVR by compatibility, licensing, storage, maintenance and local-first flexibility.
What Size UPS Do You Need for 8 PoE Security Cameras?
Size a UPS for eight PoE cameras, an NVR, switch and router using real watts, headroom and target runtime instead of VA alone.
What Size UPS Do You Need for 16 PoE Security Cameras?
Plan UPS output capacity and runtime for sixteen PoE cameras, NVRs, network switches and internet gear with realistic nighttime power draw.
Do PoE Security Cameras Record When the Router Is Off?
Whether PoE cameras keep recording with the router off depends on where the NVR, switch and camera network paths actually sit.
Security Cameras During a Power Outage vs an Internet Outage
Compare what fails during power loss and internet loss across PoE, Wi-Fi, battery, NVR, cloud and cellular camera systems.
Battery Backup for a Router, Modem and Security Cameras
Build a practical backup-power plan for routers, modems, NVRs and cameras without wasting UPS runtime on nonessential equipment.
Solar Security Camera Battery Life in Winter: What Changes?
Why solar security cameras lose charging margin in winter and how cold, shorter days, panel angle and motion activity affect battery life.
How Much Solar Panel Do You Need for a Security Camera?
Calculate security-camera solar panel watts from daily energy use, peak sun hours, charging efficiency and desired weather margin.
Why Security Camera Batteries Drain Faster in Cold Weather
Diagnose fast winter battery drain from lithium battery chemistry, charging restrictions, weak signal, night vision, motion activity and live viewing.
What Happens to NVR Recording After a Power Outage?
Understand NVR restart behavior, disk recovery, camera reconnection, clock issues and evidence gaps after sudden power loss.
How Long Will a UPS Run an NVR and Security Cameras?
Estimate UPS runtime for an NVR camera system from real watts, battery watt-hours, inverter efficiency and reserve margin.
How Much Does Ring Cost Over 5 Years?
Calculate five-year Ring subscription cost for one device versus a whole-home Ring Multi plan using current 2026 annual pricing.
How Much Does Arlo Cost Over 5 Years?
Model five-year Arlo Secure cost for one camera and unlimited-camera plans using current annual-billing-equivalent pricing.
Google Nest / Home Premium Cost Over 5 Years
Calculate five-year Google Home Premium Standard and Advanced subscription cost for Nest cameras using current 2026 U.S. pricing.
Wyze Cam Plus Cost Over 5 Years After the 2026 Price Increase
Model five-year Wyze Cam Plus recurring cost after the March 2026 annual price increase from $19.99 to $29.99.
eufy Cloud vs Local Storage: 5-Year Cost Comparison
Compare current eufy cloud backup pricing with local HomeBase or microSD storage over five years.
Cloud vs Local Security Camera Storage: Which Costs Less Over 5 Years?
Compare recurring cloud fees with the upfront cost of microSD, HomeBase, NVR and NAS storage over a five-year ownership period.
How Much Do Security Camera Subscriptions Cost for 4 Cameras?
Compare current 2026 four-camera subscription economics across Ring, Arlo, Google, Wyze and eufy.
Monthly vs Annual Security Camera Plans: When Is Annual Billing Worth It?
Compare monthly and annual security-camera subscription billing by effective discount, flexibility and expected ownership period.
When Do No-Subscription Security Cameras Pay for Themselves?
Calculate the break-even period for paying more upfront for a local-storage camera system to avoid recurring subscription fees.
Security Camera Subscription Price Increases: Why 5-Year Cost Matters
How subscription price increases change camera ownership economics and why buyers should model more than the first-year plan price.