Decoding a BL-4.0 4G 4MP Bullet Dual Light Listing: What Importers Are Actually Buying

What a BL-4.0 4G 4MP bullet dual light active pixel listing actually describes

That string is not a manufacturer's model number in any standardised sense — it is a chain of catalogue tokens that white-label sellers concatenate to make a listing searchable. BL is a bullet housing. 4.0 is a seller-internal generation or revision code with no cross-vendor meaning whatsoever. 4G means LTE cellular backhaul instead of WiFi. 4MP is a claimed sensor resolution. Dual light means two illumination systems, infrared plus white LED. Active pixel refers to the CMOS active-pixel sensor architecture, which is what essentially every camera sensor made in the last two decades uses — it distinguishes nothing. Of the six tokens, exactly two describe something a buyer can act on, and one of those two is routinely overstated.

If you are a distributor or procurement buyer comparing listings with this kind of title, the practical takeaway is that the title tells you the form factor and the connectivity. Everything else has to come from a specification sheet, a sample unit and a written quote.

The 4G token hides the question that matters

A camera advertised as 4G is useless if it does not hold a carrier's bands in your market. Vietnam, Mexico, Colombia, Brazil and Peru do not run identical LTE band plans, and a unit tuned for one region can register weakly or not at all in another. Before any purchase order, ask the factory for the exact band list the module supports, the SIM form factor, and whether the modem is locked to a carrier or an APN profile. This is a firmware and module question, never something you can infer from a product title.

Why 4MP is the least trustworthy token in the string

There are three common reasons a solar 4G bullet is listed as 4MP when the video you receive is not.

The first is interpolation: a lower-resolution sensor upscaled in firmware, producing a file with the right pixel dimensions and none of the detail. The second is summation — a dual-lens camera carrying two separate sensors, with the two figures added together into one headline number. The third is a mismatch between the sensor's nominal rating and the stream the camera actually records and transmits over LTE, which is often lower because cellular bandwidth is the binding constraint, not the sensor.

SolaGuard's position on this is deliberately conservative, because a distributor who resells an inflated figure absorbs the return. The catalogue standard is 1080p to 2K. The 49 AOV models are all 2K. Dual-lens models are stated as 2.0MP × 2 Dual Lens and triple-lens models as 2.0MP × 3 Triple Lens — per sensor, never summed into a single larger number. There is no 4MP stock SKU. Resolutions above 2K, including 4K, exist only as a custom or OEM build, quoted individually, and never as an off-the-shelf line item.

When you evaluate any supplier against this token, ask for a night-time recording file pulled off the device, not a datasheet and not a marketing clip. Interpolation is obvious in thirty seconds of real footage and invisible in a spec table.

Dual light on a solar camera is a power decision, not a feature checkbox

On a grid-powered camera, adding a white-light illuminator costs nothing but wiring. On a solar camera it competes directly with the battery and the panel, because white LEDs draw meaningfully more than infrared and they draw for as long as the scene is being lit in colour. A dual-light solar bullet that looks identical to another on paper can behave completely differently through a cloudy week, and the difference lives entirely in the battery and panel pairing.

SolaGuard's AOV range runs on 8000mAh or 20000mAh batteries with 8W or 15W panels, and those two pairings are the real specification behind any illumination claim. If a site needs colour night capture on a regular schedule, or sits under tree cover with limited winter sun, the 15W and 20000mAh combination is the honest starting point rather than the cheapest SKU that technically lists the feature.

This also explains why the range is built around AOV — Always-On Video, an industry-generic term rather than anything proprietary. An AOV camera records continuously at low standby power using AI scene analysis to decide what to keep, instead of waking on a PIR trigger. PIR is cheaper on power but structurally misses slow movement, anything approaching outside the sensor's zone, and anything already inside the frame when the camera sleeps. For livestock, yards, perimeters and construction compounds, those are precisely the events that matter.

The four AOV series

Forty-nine AOV SKUs in total, inside a wider catalogue of 150 SKUs, with wholesale prices quoted per order. Representative single models: SG-D42G-15F66-V1, SG-D42G-10F66-V1, and SG-C41G-10T66-V1. Full specifications per variant are on the product catalogue.

Note what the series naming does not do: it does not lead with a housing label or a generation number. Variants differ by sensor count, battery, panel and feature configuration, which are the attributes that change field behaviour. Confirm the exact configuration of a given V-suffix variant against its product page before quoting it to a customer.

Specifying an order you can verify on delivery

Storage is microSD up to 128GB as standard, with larger cards only on custom orders. Outdoor weatherproofing is IP66 across the range — not a higher ingress rating, and any supplier quoting one on a solar camera with a removable card door deserves a direct question about how the seal is tested. Installation is 5 to 10 minutes per camera, which matters more than it sounds when a distributor's crew is commissioning dozens of units across scattered rural sites with no ladder work for cabling.

Manufacturing is Shenzhen Leksell, established 2012, certified by TÜV Rheinland and holding CE, FCC and RoHS. OEM and private label are available across every model including all 49 AOV SKUs, at an MOQ of 100; trial orders start at 10 units. Lead times are 7 to 10 days by air for samples, 25 to 40 days by sea for bulk, and 7 to 10 business days for delivery inside Vietnam from the Ho Chi Minh City office. Distributor margin is 20% from roughly 10 units and 30% from roughly 50 — the structure is set out on the dealer programme page.

The checklist to send a factory

Ask for these in writing, in this order, before committing to a first container:

• Per-sensor resolution, stated separately for each lens, plus the actual recorded and transmitted stream resolution over LTE
• LTE band list and SIM handling for your specific target country
• Battery capacity and panel wattage as a pair, with the expected autonomy assumption stated
• Whether white-light illumination is continuous or event-triggered, and its effect on that autonomy figure
• Maximum supported card capacity and retention at your intended bitrate
• Certification documents by model, not by company
• A sample unit and an unedited night recording from it

Any supplier who answers all seven without hedging is quoting a product that exists. Any supplier who answers a title-token question with another title token is reselling someone else's listing. Volume pricing and OEM terms for the AOV range are handled on the wholesale page or directly at info@solaguard.net — quantity, price and lead time always come from a person, never from an auto-generated spec string.