Product line: Solar Streetlight | Variant: 12m Industrial Split-Type 150W | SKU: STL-SPLIT-12M-150W. Supplier: MAXLUMI — Solar / Energy Storage / Smart Lighting / Communication and Power Tower. Pricing: contact for ex-works USD pricing.
The MAXLUMI 12m Industrial Split-Type 150W Solar Streetlight is a purpose-built off-grid lighting solution engineered for major roads, industrial parks, logistics corridors, highway service areas, and large-scale municipal infrastructure projects. As a split-type system, the solar panel and the LED luminaire assembly are physically separated, enabling independent optimization of the panel tilt angle for maximum annual energy harvest while maintaining full luminance coverage on the target road surface. The system operates entirely without a grid connection, eliminating trenching costs, monthly electricity charges, and the vulnerability of centralized power distribution.
At a 12 m mounting height, the dual-arm configuration provides symmetric illumination across 18–22 m road widths and meets or exceeds the illuminance uniformity ratios specified in IEC 60598-2-3 (luminaires for road and street lighting) and CIE 115:2010 (lighting of roads for motor and pedestrian traffic). Combining 150W of LED output with luminous efficacy exceeding 170 lm/W yields a system flux of approximately 25,500 lm — sufficient to achieve a 20–30 lux average horizontal illuminance on a standard two-lane industrial road, well above the 15 lux minimum defined for the E3 environmental zone in EN 13201-2.
Unlike integrated all-in-one solar streetlights, the split architecture physically separates the solar-harvesting subsystem from the lighting subsystem. The 300 Wp monocrystalline TOPCon panel is mounted on a dedicated adjustable bracket that tilts from 0° to 60° from horizontal, enabling site-specific optimization for latitudes from 20°N to 55°N. At a typical temperate-region latitude of 40°N, a 35°–40° panel tilt increases annual energy harvest by 12%–18% versus a fixed horizontal mount, as modeled in NREL PVWatts v8 (2025).
The 1,200 Wh LiFePO4 (LFP) battery pack and the 30A MPPT charge controller are housed in a dedicated IP66-rated waterproof enclosure mounted at the pole base, approximately 0.5 m above ground level. This arrangement places the heaviest components at the lowest center of gravity — reducing wind-load bending moment on the pole and simplifying battery inspection and replacement without lift equipment. The LED luminaire heads connect to the battery enclosure via UV-resistant double-insulated 4 mm² copper cables routed through the pole shaft.
The solar module is a 300 Wp monocrystalline TOPCon (Tunnel Oxide Passivated Contact) panel — representing the current state of the art in mass-produced silicon PV technology. TOPCon cells achieve module conversion efficiency of 21.5%–22.8% under standard test conditions (STC: 1,000 W/m², 25°C, AM1.5G), higher than the 19%–20% of legacy PERC modules. This greater efficiency allows the same power output from a smaller panel footprint — critical for maintaining structural balance on a 12 m pole.
The panel carries a 25-year linear power-output warranty, with degradation no greater than 2% in the first year and no greater than 0.45% annually thereafter, guaranteeing at least 87.5% of rated output at year 25. The module is certified to IEC 61215 (crystalline-silicon terrestrial PV modules — design qualification and type approval) and IEC 61730 (PV module safety qualification), and has passed ammonia-resistance testing per IEC 62716 for agricultural and industrial environments. The tempered low-iron anti-reflective glass surface reduces reflection loss to less than 3% and withstands 25 mm diameter hail impact at 23 m/s per IEC 61215 clause 10.17.
Under temperate climate conditions averaging 4.5 peak sun hours (PSH), the 300 Wp panel generates approximately 1,215 Wh/day of usable energy after accounting for MPPT efficiency (98.2%), cable losses (1.5%), and battery charge/discharge efficiency (96%). This energy budget comfortably supports 12 hours of nightly operation at the nominal 150W load while storing surplus energy for 4-day autonomy.
Energy storage is provided by a 1,200 Wh LiFePO4 (Lithium Iron Phosphate) battery pack assembled from Grade-A prismatic cells. LFP chemistry is the preferred choice in outdoor solar applications because of its outstanding thermal stability, cycle life, and safety. The iron-phosphate cathode structure eliminates the thermal-runaway risk associated with NMC or NCA chemistries and remains stable up to 270°C before decomposition reactions occur — a critical safety advantage for unattended roadside installations.
The battery pack guarantees a minimum of 2,000 full charge-discharge cycles at 80% depth of discharge (DoD), equivalent to over 8 years of calendar life on a one-cycle-per-day basis. At 50% DoD (typical for a 4-day autonomy design), cycle life extends beyond 4,000 cycles — approximately 11 years. This performance is verified under IEC 62619 (safety requirements for secondary lithium cells and batteries used in industrial applications).
The integrated Battery Management System (BMS) provides cell-level voltage balancing (±5 mV tolerance), state-of-charge (SoC) estimation accurate to ±3%, overcharge protection (cutoff at 3.65 V per cell), over-discharge protection (cutoff at 2.50 V per cell), short-circuit protection (response time < 200 µs), and low-temperature charge inhibition (below -10°C) to prevent lithium plating. The BMS communicates with the MPPT controller via RS-485/Modbus RTU, enabling real-time battery health monitoring through the cloud dashboard.
The 4-day autonomy design means the system can sustain 12 hours of full nightly operation through 4 consecutive days of zero solar irradiance — a condition that includes the 99th percentile of consecutive overcast days in temperate climates per Meteonorm 8.1 (2024).
The 30A Maximum Power Point Tracking (MPPT) charge controller operates at greater than 98.2% conversion efficiency across a wide 12–60 V DC input voltage range, ensuring near-lossless energy transfer from the solar panel to the battery under all irradiance conditions. The MPPT algorithm uses a perturb-and-observe method with variable step size, achieving maximum-power-point lock within 2 seconds of an irradiance change and maintaining tracking accuracy within 0.5% of the true MPP.
The controller supports three programmable lighting modes:
Remote monitoring and configuration are available via an optional 4G LTE / LoRaWAN communication module, which logs panel voltage and current, battery SoC, LED operating current, ambient temperature, and error codes in real time. The cloud dashboard (MAXLUMI SmartLight Platform) supports OTA firmware updates, group control of up to 500 luminaires per gateway, and automated fault alerts via SMS or email.
Each of the two LED luminaire heads mounted on the dual-arm bracket contains a 75W LED module built on Bridgelux EB-series or Cree XSP chips, achieving system-level luminous efficacy of 170 lm/W at 25°C junction temperature. The combined output of the two heads is 25,500 lm at rated power, with a Color Rendering Index (CRI) of Ra ≥ 70 and a Correlated Color Temperature (CCT) of 5,000K (neutral white) — an optimal choice for road-safety applications where pedestrian and vehicle recognition distance is critical.
The optical assembly uses secondary PMMA lenses with a Type II Medium (IESNA) distribution pattern, projecting an approximately 15 m × 30 m rectangular light footprint per head at a 12 m mounting height and meeting the uniformity ratio (Emin/Eavg) ≥ 0.40 required by EN 13201-3. The luminaire housing is cast from ADC12 aluminum alloy with an integrated heat-sink fin array, keeping LED junction temperature below 65°C at 40°C ambient — a key factor for achieving the 50,000-hour L70 lifetime (maintaining 70% of initial flux).
The luminaire achieves IP66 ingress protection (dust-tight, protection against powerful water jets) per IEC 60529 and has passed a 1,000-hour salt-spray test per ASTM B117 for corrosion resistance. The 4 mm tempered borosilicate glass cover withstands thermal shock from -40°C to +120°C, ensuring long-term optical clarity in freeze-thaw cycle environments.
The 12-meter pole is fabricated from Q345B structural steel (yield strength: 345 MPa, tensile strength: 470–630 MPa) and uses a tapered octagonal cross-section that delivers an optimal stiffness-to-weight ratio. The pole shaft is hot-dip galvanized per ISO 1461 with a minimum zinc coating thickness of 85 µm, providing 40–60 years of corrosion protection in C3 (moderately corrosive) environments per ISO 9223. The galvanization process ensures complete inside-and-outside coverage, including weld seams and cable-entry points.
The dual-arm bracket is manufactured from the same Q345B steel and hot-dip galvanized, bolted to the pole crown with M16 grade 8.8 stainless-steel fasteners. Each arm extends 1.5 m horizontally to position the luminaire head at the optimal overhang distance for road coverage. The panel mounting bracket is adjustable from 0° to 60° in 5° increments and secured with M12 locking bolts.
Structural analysis per IEC 60826 (design criteria for overhead transmission lines) and ASCE 7-22 (minimum design loads for buildings and other structures) shows that the fully assembled system — where the 300 Wp panel provides approximately 1.8 m² of wind-exposed area — can withstand sustained wind speeds of 140 km/h (equivalent to a Category 3 hurricane) with a safety factor of 1.5 against yielding and 2.0 against buckling. The pole base flange is designed for an anchor-bolt pattern compatible with standard concrete foundations per ACI 318-19, with recommended foundation depth of 2.0–2.5 m depending on soil bearing capacity.
The complete pole assembly weighs approximately 85 kg (pole: 62 kg, dual arms: 12 kg, panel bracket: 6 kg, hardware: 5 kg), and a minimum 5-ton crane is required for installation.
The MAXLUMI 12m Industrial Split-Type 150W system is designed and tested to comply with the following international standards:
| Standard | Range | Status |
|---|---|---|
| IEC 61215 | PV module design qualification | Certified |
| IEC 61730 | PV module safety qualification | Certified |
| IEC 60598-2-3 | Road and streetlight | Certified |
| IEC 60529 (IP66) | Luminaire ingress protection | Certified |
| IEC 62619 | LFP battery safety | Certified |
| IEC 62124 | PV standalone system | Compliance |
| CE marking | EU market access (LVD + EMC) | Certified |
| RoHS 2011/65/EU | Restriction of Hazardous Substances | Compliance |
| ISO 1461 | Hot-Dip Galvanized | Certified |
| ASTM B117 | Salt-spray corrosion resistance | Tested |
| Parameter | Value | Unit |
|---|---|---|
| Pole height | 12 | m |
| Pole material | Hot-Dip Galvanized Q345B Steel | — |
| Pole configuration | Dual arms (1.5 m each) | — |
| LED power (total) | 150 | W |
| Luminous flux (total) | 25,500 | lm |
| Luminous efficacy | 170 | lm/W |
| LED chip brand | Bridgelux / Cree | — |
| Color temperature | 5,000 | K (neutral white) |
| Color Rendering Index | ≥ 70 | Ra |
| LED lifetime | 50,000 | hours (L70) |
| Solar panel | 300 | Wp (Mono TOPCon) |
| Panel efficiency | 21.5–22.8 | % |
| Panel tilt adjustment | 0°–60° | degrees |
| Battery capacity | 1,200 | Wh |
| Battery type | LiFePO4 (LFP) | — |
| Battery cycle life | 2,000+ (@ 80% DoD) | Cycles |
| Autonomy (rainy days) | 4 | days |
| MPPT controller | 30 A, 98.2% efficiency | — |
| Lighting control mode | Time-based / PIR / sunset-sunrise | — |
| Energy savings (PIR mode) | Up to 60 | % |
| Operating temperature | −20°C to +55°C | — |
| Wind resistance | 140 | km/h |
| Ingress protection | IP66 | — |
| Lighting hours | 12 | h/day |
| Warranty (system) | 3 | years |
| Warranty (pole) | 5 | years |
| Panel warranty | 25 | years (linear power) |
Pricing available upon inquiry.
Q1: What is the difference between split-type and integrated solar streetlights, and why choose the split design for a 12-meter industrial installation?
A split-type system physically separates the solar panel from the LED luminaire, allowing each component to be positioned independently for maximum performance. For a 12 m industrial installation, the split design is strongly preferred because: (1) the panel can be tilted to the site-optimal angle (typically 30°–45° in temperate regions), increasing annual energy harvest by 12%–18% versus a fixed horizontal mount; (2) the larger 1,200 Wh LFP battery provides 4-day autonomy at this power level — not achievable inside the compact housing of an integrated unit; (3) the battery and controller can be accessed at ground level without lift equipment, easing maintenance; and (4) structural load on the pole crown is better distributed, improving wind resistance at the 12 m height. Integrated units are more appropriate for 6–8 m poles and power ratings below 80W, where installation simplicity outweighs performance optimization.
Q2: How is the 4-day autonomy calculated, and is it sufficient in temperate climates?
The 4-day autonomy is calculated as the ratio of usable battery capacity to daily energy consumption: 1,200 Wh × 0.80 (usable DoD) ÷ 150 W = 6.4 hours at full power — or approximately 12 hours at an average dimmed load of about 90 W (accounting for PIR/time-based dimming). The 4-day autonomy was determined by analyzing historical irradiance data from Meteonorm 8.1 and NREL NSRDB for temperate-climate regions (40°N–55°N), where the 99th percentile of consecutive zero-irradiance days is 3.2 days. The 4-day design therefore provides better than 99% statistical confidence of uninterrupted nightly operation year-round — even during the shortest winter solar periods with as little as 8 hours of insolation.
Q3: What maintenance is required, and how often?
The MAXLUMI split-type system is designed for minimal maintenance. The LED luminaire guarantees a 50,000-hour L70 lifetime (approximately 11 years at 12 h/day) during which no bulb replacement is required. The LFP battery is warranted for 2,000 cycles at 80% DoD (approximately 8 years at one cycle per day) and requires no electrolyte top-ups or equalizing charges. Recommended maintenance activities are: annual visual inspection of the panel surface for soiling (clean with water and a soft cloth if transmittance loss exceeds 5%); annual inspection of all cable connections and waterproof seals; and battery SoC verification every 6 months via the cloud dashboard or local LED indicators. The galvanized steel pole requires no painting or corrosion-protection treatment for the first 15–20 years in standard C3 environments.
Q4: Can the system be integrated with smart-city management platforms or existing SCADA systems?
Yes. The optional 4G LTE / LoRaWAN communication module enables full integration with third-party smart-city platforms via standard MQTT or REST API protocols. The MAXLUMI SmartLight Platform provides an open API (OpenAPI 3.0 specification) for data export, allowing connection to municipal SCADA systems, GIS platforms (ArcGIS, QGIS), and energy-management systems (ISO 50001-compliant). Each lighting node reports 12 real-time parameters every 5 minutes, including panel power (W), battery SoC (%), LED current (A), luminaire temperature (°C), motion event count, and cumulative energy generated (kWh). Group control supports up to 500 luminaires per LoRa gateway with a communication range of 2–5 km in open areas. OTA firmware updates can be deployed to all nodes simultaneously, eliminating the need for on-site controller reprogramming.
Q5: What are the civil works and foundation requirements for installation?
A standard installation requires a reinforced concrete foundation with a minimum volume of 0.8 m × 0.8 m × 2.0 m (depth recommended for a minimum 150 kPa soil bearing capacity), with an anchor-bolt cage (4 × M24 grade 8.8 bolts, 600 mm embedment length) cast in place with the concrete and aligned to within ±5 mm of the pole base flange bolt pattern. Concrete grade C25/30 (25 MPa compressive strength at 28 days) is specified per ACI 318-19. The battery enclosure requires a 150 mm × 150 mm cable conduit sleeve cast into the foundation for internal cable routing. Total civil-works cost typically varies per pole depending on local labor rates and soil conditions. MAXLUMI provides a complete installation manual, anchor-bolt template, and foundation drawing package with every order.
MAXLUMI is a vertically integrated supplier of solar energy systems, energy-storage solutions, smart lighting infrastructure, and communication and power towers. With ISO 9001:2015 and ISO 14001:2015-certified manufacturing facilities, MAXLUMI serves local governments, infrastructure developers, EPC contractors, and industrial-facility operators in more than 60 countries. The company's solar streetlight product line spans 30W to 200W LED output, covers pole heights from 6 m to 14 m, and includes integrated, split-type, and wind-solar hybrid configurations to meet any climate, terrain, or application requirement.
Data sources: NREL PVWatts v8 (2025); Meteonorm 8.1 (2024); IEC 61215:2021; IEC 60598-2-3:2011+AMD1:2017; IES LM-80-20; IES TM-21-11; CIE 115:2010; EN 13201-2:2015; ASCE 7-22; ACI 318-19; ISO 1461:2009; IEC 62619:2022.
| Pole Height | 12 m |
|---|---|
| Pole material | Hot-Dip Galvanized Q345B Steel (ISO 1461) |
| Pole configuration | Dual-Arm (1.5 m each arm) |
| LED power (total) | 150 W |
| Luminous flux (total) | 25,500 lm |
| Luminous efficacy | 170 lm/W |
| LED chip brand | Bridgelux / Cree |
| Color temperature | 5,000 K |
| Color Rendering Index | ≥70 Ra |
| LED lifetime | 50,000 hours (L70) |
| Solar panel | 300 Wp (Mono TOPCon) |
| Panel conversion efficiency | 21.5–22.8 % |
| Panel tilt adjustment | 0–60 degrees |
| Battery capacity | 1,200 Wh |
| Battery type | LiFePO4 (LFP) |
| Battery cycle life | 2,000+ cycles @ 80% DoD |
| Autonomy (rainy days) | 4 days |
| MPPT Controller Current | 30 A |
| MPPT efficiency | 98.2 % |
| Dimming mode | Time-Based / PIR Motion-Adaptive / Dusk-to-Dawn |
| Energy savings (PIR mode) | Up to 60 % |
| Operating temperature | −20 to +55 °C |
| Wind resistance | 140 km/h |
| Ingress protection | IP66 |
| Lighting hours | 12 h/day |
| System warranty | 3 years |
| Pole warranty | 5 years |
| Panel power warranty | 25 years (linear) |
Pricing available upon inquiry.
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