How do the imaging specs compare?

Both cameras deliver 4MP resolution at 25/30fps across identical 16:9 modes (2560×1440, 1920×1080, 1280×720) and 4:3 modes (2048×1536, 1280×960). The shared 1/2.8-type CMOS sensor produces a 5.12mm × 3.84mm scanning area on each model, with a 2.4mm F2.1 fixed lens providing 121° horizontal field of view and a minimum color illumination of 0.07 lx. Both achieve 132dB dynamic range with Super Dynamic level 31 enabled, and IR LED range is specified at 14m on both units.

One measurable low-light distinction exists: the F2LM specification explicitly lists 0 lx (with IR) for B&W minimum illumination, while the F2L lists 0.06 lx B&W without a stated 0-lx IR floor. The F2LM also documents ICR state as Off/On(IR Off)/On(IR On)/Auto — a four-state control — whereas the F2L lists Off/On/Auto, a three-state control. DORI distances are identical across both: Detect 29.0m, Observe 11.6m, Recognize 5.8m, Identify 2.9m. Both use the Ambarella CV25M SoC. Smart Coding is implemented on both, with the F2L specifying Variable GOP 1–16s plus Fixed GOP 60s option, and the F2LM specifying Variable GOP 1–60s with frame-rate control — a wider GOP range on the F2LM per the supplied specs.

What about installation and environment?

Both cameras share identical mechanical dimensions (109mm W × 53mm H × 119mm D) and mass (approx. 475g), with the same aluminum die-cast white / PC resin clear finish and tamper-resistant enclosure. Environmental ratings are matched: IP66 (IEC 60529), Type 4X (UL50E), NEMA 4X, IK10 (IEC 62262), and wind resistance up to 40 m/s. Operating temperature range is −40°C to +60°C on both, though the F2LM spec adds a −20°C power-on qualification not stated in the F2L spec.

The single most installation-critical physical difference is the network connector: the F2L uses an RJ45 connector, while the F2LM uses an M12 connector. M12 is the standard hardened connector for rolling stock and trackside cabinets where vibration, moisture ingress, and connector retention are concerns — RJ45 is not rated for those environments. Both are PoE-powered at 8.6W maximum. Railway/vehicle certifications also diverge: the F2L covers EN50155, JIS E 5006, IEC62236, and EN50121; the F2LM adds IEC61373 (mechanical shock and vibration for railway equipment) and EN45545 (railway fire protection) to that same base set. Both units carry identical safety marks (UL62368-1, CSA C22.2 No.62368-1, CE, IEC62368-1) and EMC marks (FCC Part15 ClassA, ICES-003 ClassA, EN55032 ClassA, EN55035).

Which fits your VMS and analytics better?

Both cameras are ONVIF Profile G/M/S/T compliant, support up to 14 simultaneous users, and offer H.265/H.264 with constant and variable bitrate, unicast and multicast, plus JPEG at 10 quality steps. FIPS 140-2 Level 3 secure element is present on both. Edge storage on both supports microSDXC up to 512GB; the F2LM spec enumerates capacity tiers (2GB–512GB across SD/SDHC/SDXC) more explicitly. The F2L alarm actions include Email, HTTP, TCP notifications, and SD card recording; the F2LM alarm actions list Email, HTTP, and TCP notification — SD card recording is not explicitly listed in the F2LM alarm actions field as supplied.

AI analytics on the F2L are enumerated as AI motion, face, people, vehicle, mask, and occupancy detection. The F2LM spec states '7 detection types' without individually naming them in the provided data. Both include AI Sound Classification (Gunshot, Yell, Vehicle horn, Glass break), VMD (4 areas), SCD (1 area), and audio detection. The F2L IPv6 protocol stack is fully enumerated (including SSL/TLS, SMTP, DNS, NTP, SNMPv1/v2/v3, DHCPv6, RTP, MLD, ICMP, ARP, IEEE 802.1X, DiffServ, LLDP, FTP, SFTP, MQTT); the F2LM IPv6 stack as supplied lists only IPv6, TCP/IP, UDP/IP, HTTP, HTTPS, SNMPv3 — a shorter list that may reflect incomplete spec documentation rather than a feature gap. Both models list 9 GUI languages; the F2L enumerates them (English, Italian, French, German, Spanish, Portuguese, Russian, Chinese, Japanese).

Which should you choose: the X35402-F2L or the X35402-F2LM?

Our take: The WV-X35402-F2LM is the stronger choice when the deployment is rolling stock, trackside, or any vibration-and-moisture-exposed environment requiring a hardened connector and full railway certification. Its M12 network connector replaces the F2L's RJ45 with a connector designed for connector retention and ingress resistance under vibration. Its railway certification set adds IEC61373 (mechanical shock/vibration) and EN45545 (fire protection) to the four standards the F2L already carries — two certifications that are procurement requirements on most rail contracts. It also documents 0 lx B&W minimum illumination with IR active, a floor the F2L spec does not explicitly state. The WV-X35402-F2L is the appropriate choice where a standard RJ45 infrastructure is already in place, connector tooling is not railway-hardened, and the additional two rail certifications are not contractually required — it offers the same 4MP/132dB/IK10/IP66 imaging and environmental performance at that level.

Side-by-Side Comparison

Spec-for-spec, from manufacturer data.

Frequently Asked Questions

Related Resources

• i-PRO X35402-F2L product page — full specs and to add to a quote
• i-PRO X35402-F2LM product page — full specs and to add to a quote