Quick Answer

To compare all-in-one solar street light specifications, evaluate every quotation using the same project location, lighting schedule, battery autonomy, road geometry, and performance requirements. Check actual LED system power, photometric files, solar panel wattage, usable battery energy, controller functions, pole specifications, certifications, warranty coverage, and delivery scope. Do not select a system based only on nominal wattage or unit price.

All-in-one solar street lights combine the LED luminaire, photovoltaic panel, lithium battery, controller, and sensors in a compact unit. This design can simplify installation and reduce cabling, but products with a similar appearance may deliver very different energy capacity, lighting performance, structural strength, and service life.

For municipal authorities, EPC contractors, distributors, and infrastructure companies, the central question is:

Can the proposed system deliver the required lighting performance throughout the year under the actual project conditions?

Key Takeaways

• Compare actual system power instead of model names or equivalent wattage.
• Convert battery specifications into watt-hours before comparing capacity.
• Confirm solar panel wattage, module technology, and installation conditions.
• Request IES or LDT files for project-specific lighting simulations.
• Check battery cycle life under clearly stated test conditions.
• Review controller settings, dimming schedules, and protection functions.
• Include poles, brackets, foundation parts, warranties, and logistics in the comparison.
• Select the best compliant lifecycle value rather than the lowest unit price.

Part1: Establish a Common Comparison Basis

1.1 Project Location and Climate

Every supplier should calculate its proposal using the same project information:

• Project location
• Lowest relevant seasonal solar irradiation
• Ambient temperature range
• Rainfall, humidity, dust, or salt exposure
• Design wind speed
• Shading and surrounding obstructions
• Required operating hours
• Required battery autonomy

A system designed for a sunny tropical location cannot be compared directly with one designed for a cold, cloudy, or shaded site. Annual average sunlight data may also hide poor winter performance.

1.2 Lighting Schedule

Define the required operating schedule before reviewing quotations. A typical schedule may include:

• Full output during early evening
• Reduced output during low-traffic periods
• Increased output when motion is detected
• Higher output before dawn
• A defined total operating time each night

Two suppliers may offer the same battery and panel size but use different dimming schedules. The lower-priced system may simply deliver fewer watt-hours of lighting each night.

Require every supplier to state the proposed power level and operating time for each period.

1.3 Required Lighting Performance

Specify the required lighting result, including:

• Target illuminance or luminance
• Lighting uniformity
• Glare limitations
• Road width and number of lanes
• Pole height and spacing
• Fixture arrangement
• Applicable local standards

Suppliers should provide photometric calculations using the proposed luminaire. Nominal wattage and a stated coverage area are not sufficient evidence of project performance.

Part2: Compare the Main System Components

2.1 LED Luminaire

The LED section should be evaluated using complete system data.

Compare suitable LED street lights using their optical performance rather than wattage alone.

IEC 60598-1 specifies general safety requirements for luminaires. Confirm that any submitted certification applies to the quoted model and configuration. See the official IEC 60598-1 overview.

2.2 Solar Panel

Solar panel capacity must support the actual daily energy demand during the least favorable design period.

Check:

• Rated maximum power
• Solar cell technology
• Module efficiency
• Voltage and current at maximum power
• Temperature coefficients
• Physical dimensions
• Mounting angle and orientation
• Cable and connector specifications
• Product and power warranties
• Applicable test documentation

The IEC 61215 series addresses design qualification and type approval for terrestrial photovoltaic modules. Qualification supports product evaluation, but it should not be interpreted as a guaranteed prediction of module life. Review the official IEC 61215-1-1 information.

2.3 Lithium Battery

Battery capacity should be compared in watt-hours:

Nominal battery energy (Wh) = Nominal voltage (V) × Rated capacity (Ah)

For example, a 12.8 V, 60 Ah battery has a nominal energy capacity of 768 Wh. However, nominal energy is not the same as usable energy.

Buyers must also consider:

• Permitted depth of discharge
• BMS cutoff settings
• Charge and discharge losses
• Temperature derating
• Battery aging reserve
• Required autonomy
• Maximum charge and discharge current
• Cell consistency

Ask suppliers to state:

• Battery chemistry
• Cell manufacturer and model
• Pack voltage and capacity
• Nominal and usable energy
• Cycle life at a defined depth of discharge
• Test temperature
• End-of-life capacity
• BMS protection functions
• Battery warranty

Avoid accepting “Grade-A cells” as sufficient proof of quality. This commercial description should be supported by traceable cell information, test data, and clear warranty terms.

UN 38.3 documentation is important for battery transportation, but it does not independently verify capacity, cycle life, or suitability for a solar street light project. The transport requirements can be reviewed through the UNECE Manual of Tests and Criteria.

2.4 Solar Charge Controller

The controller determines how the system charges, discharges, dims, and protects the battery.

Compare:

• MPPT or PWM charging
• Charging efficiency
• Programmable lighting schedules
• Motion-sensor settings
• Low-voltage protection
• Overcharge protection
• Overcurrent and short-circuit protection
• Reverse-polarity protection
• Temperature compensation
• Low-temperature charging protection
• Remote monitoring
• Fault history and diagnostics

The proposed lighting profile should be included in the quotation. Without it, buyers cannot verify whether the battery and panel have been sized for the required operating schedule.

Part3: Verify Energy Balance and Autonomy

3.1 Daily Energy Demand

A simplified daily lighting demand can be calculated as:

Daily demand (Wh) = Sum of fixture power × operating hours at each output level

For example, a 60 W luminaire operating for five hours at full output and seven hours at 30% output does not consume the same amount of energy as a 60 W luminaire operating at full output throughout the night.

Controller losses, battery losses, wiring losses, temperature, and component aging should also be included.

3.2 Solar Energy Generation

A simplified generation estimate is:

Daily solar generation (Wh) = Panel wattage × peak sun hours × system efficiency

Use the lowest relevant seasonal solar resource rather than an annual average. Shading, high panel temperature, dust, tilt angle, controller performance, and battery charging efficiency can reduce usable generation.

For a more detailed sizing process, review how to calculate solar street light configuration by location.

3.3 Battery Autonomy

Battery autonomy should reflect local weather, project risk, and operational requirements. A fixed three-day or five-day claim is not appropriate for every location.

Compare suppliers using the same:

• Daily energy demand
• Permitted depth of discharge
• Temperature assumptions
• Battery aging allowance
• Required backup period
• Dimming strategy during low-energy conditions

Request a written energy-balance sheet showing the main assumptions. A quotation without its sizing assumptions cannot be evaluated reliably.

Part4: Review Mechanical and Structural Specifications

4.1 Integrated Housing

The integrated housing supports or contains the solar panel, LED module, battery, controller, and sensors.

Check:

• Housing material
• Surface treatment
• Sealing design
• Heat dissipation
• Battery access
• Controller access
• Fastener material
• Corrosion resistance
• Panel replacement method
• Modular component replacement

A compact appearance does not necessarily mean easier maintenance. Confirm whether individual components can be replaced without changing the complete luminaire.

4.2 Pole and Bracket

An integrated solar luminaire can have a substantial wind-exposed area. Pole design should account for:

• Pole height
• Steel or aluminum grade
• Pole geometry
• Wall thickness
• Luminaire weight
• Effective projected area
• Bracket length and angle
• Design wind speed
• Terrain exposure
• Base plate and anchor bolts
• Foundation interface
• Galvanizing or coating requirements

Compare street light poles using structural calculations and project loads rather than height alone.

The pole, bracket, luminaire, and foundation interface should be evaluated as one structural system.

4.3 Installation and Maintenance

Review how the complete system will be installed and serviced:

• Lifting and mounting method
• Pole-top interface
• Panel orientation
• Battery replacement
• Controller programming
• Spare-part availability
• Required tools
• Maintenance access
• Installation manuals
• Commissioning procedure

Faster installation is valuable only when the mounting system remains secure and serviceable throughout the project lifecycle.

Part5: Review Documentation and Commercial Scope

5.1 Required Technical Documents

A complete technical submission should include:

• Product datasheets
• Battery and cell datasheets
• Solar panel datasheet
• Controller specifications
• IES or LDT photometric file
• Lighting calculation
• Energy-balance calculation
• Pole drawing
• Structural design assumptions
• Foundation and anchor-bolt information
• Relevant certificates and test reports
• Installation instructions
• Warranty terms

Check model numbers across all documents. Certificates for a different product series should not be accepted without evidence that they cover the quoted configuration.

5.2 Warranty Comparison

Compare what the warranty actually covers:

• Complete system or separate components
• LED module
• Controller
• Battery
• Solar panel
• Pole and surface treatment
• Replacement parts
• Freight for replacement components
• Required maintenance records
• Environmental exclusions

A longer headline warranty may provide less protection if it excludes the battery, transportation, or replacement costs.

5.3 Delivery Scope and Price

Confirm whether the price includes:

• Integrated solar luminaires
• Poles and brackets
• Anchor bolts and templates
• Foundation accessories
• Cables and connectors
• Mounting hardware
• Spare parts
• Programming tools
• Packaging
• Inland transportation
• Ocean freight
• Insurance
• Documentation
• Commissioning support

Battery cells, solar panels, steel, zinc, electronics, and transportation can all affect the final quotation. Review the main solar street light cost drivers when comparing unusually large price differences.

Normalize all quotations to the same Incoterm, currency, delivery destination, and supply scope before comparing unit prices.

Part6: Build a Supplier Evaluation Matrix

6.1 Technical Compliance

Classify every tender requirement as:

• Compliant
• Partially compliant
• Non-compliant
• Not confirmed

Missing information should not receive the same score as verified compliance. Suppliers should identify deviations instead of silently substituting components.

6.2 Lifecycle Value

Evaluate:

• Initial purchase price
• Installation cost
• Expected battery replacement
• Spare-part cost
• Maintenance access
• System reliability
• Warranty support
• Supplier response time
• Documentation quality
• Delivery schedule

The lowest quotation may become more expensive if it requires earlier battery replacement, additional poles, reduced operating hours, or unsupported maintenance.

6.3 Recommended Comparison Table

Conclusion

Comparing all-in-one solar street light specifications requires more than checking wattage, battery capacity, and unit price. Buyers should establish one common design basis and verify the luminaire, solar panel, battery, controller, pole, structural calculations, documentation, warranty, and delivery scope against that basis.

The best proposal is the one that demonstrates compliant lighting performance and a reliable energy balance under the project’s actual conditions. A structured evaluation protects lighting quality, reduces lifecycle risk, and gives procurement teams a defensible basis for supplier selection.

Explore LeapPole’s all-in-one solar street lights to review available configurations for infrastructure and commercial projects.

FAQ

What is the most important specification when comparing all-in-one solar street lights?

No single specification determines system quality. The most important factor is whether the panel, battery, LED luminaire, controller, pole, and operating schedule work together to meet the required lighting performance throughout the design period.

Should you compare battery capacity in Ah or Wh?

Use watt-hours because Ah values cannot be compared accurately without considering battery voltage. Also request usable energy after depth-of-discharge limits, system losses, temperature derating, and aging reserve are applied.

Does a higher solar panel wattage always mean better performance?

No. Panel wattage must be evaluated together with solar irradiation, orientation, shading, controller efficiency, battery capacity, and daily energy demand. An oversized panel cannot compensate for poor system design or severe shading in every situation.

How can you verify the claimed lighting coverage?

Request the luminaire’s IES or LDT file and perform a project-specific photometric calculation using the proposed pole height, spacing, road width, and fixture orientation. Do not rely only on a supplier’s stated coverage area.

Is UN 38.3 enough to prove battery quality?

No. UN 38.3 relates primarily to lithium battery transport testing. Buyers should separately verify capacity, cycle life, cell traceability, BMS functions, operating temperature, warranty, and suitability for the solar lighting application.

How can LeapPole help configure an all-in-one solar street light system?

Submit your project location, road layout, lighting requirements, operating schedule, design wind speed, quantities, and tender specifications through the LeapPole contact page. LeapPole can evaluate the energy balance, photometric requirements, pole configuration, documentation, and delivery scope for a project-specific proposal.