All-in-one and all-in-two solar street lights can look similar in a product catalogue, but their component arrangements create different considerations for installation and project planning.
For buyers, the useful question is not simply which design is better. It is which arrangement fits the proposed installation—and whether the quotation clearly describes the equipment being supplied.
This guide focuses on the details to compare before confirming an order.
Check What Each Product Name Actually Means
In an all-in-one solar street light, the solar panel, LED light source, battery and controller are integrated into one assembly.
In the all-in-two arrangement discussed here, the solar panel is separate, while the battery is integrated into the light housing.
Product naming can differ between suppliers. Before comparing quotations, ask for a component layout or product drawing that shows where the panel, battery and controller are located.
A clear drawing is more useful than relying on a product name alone.
Compare Solar Panel Positioning
The relationship between the solar panel and the luminaire is one of the main differences between these structures.
With an all-in-one design, the panel and luminaire are part of the same assembly. Their positioning needs to satisfy both the lighting direction and the panel’s exposure to sunlight. The available adjustment depends on the specific mounting design.
With an all-in-two design, the separate panel can provide more flexibility in positioning it relative to the luminaire. However, the bracket’s adjustment range and the proposed installation still need to be checked.
Before choosing, review:
- The direction the luminaire needs to face.
- Available sunlight at the proposed pole position.
- Nearby trees, buildings and other sources of shade.
- Panel tilt and orientation adjustment.
- Access for cleaning and maintenance.
Neither arrangement can compensate for a poorly chosen installation location.
Review the Installation Work Included
An integrated assembly can reduce the number of separate components that installers need to mount. However, the complete unit’s dimensions, weight and connection details still matter.
An all-in-two system normally requires the panel and its bracket to be installed separately from the light housing. The installation also needs a suitable cable route between the assemblies.
When reviewing all-in-one solar street lights, confirm how the complete fixture attaches to the pole.
When reviewing all-in-two solar street lights, confirm the panel bracket, cable connections and mounting hardware included in the supply.
Ask for installation drawings before ordering, particularly when the products will be fitted to existing poles.
Compare Configurations on the Same Basis
A structural comparison is useful only when the proposed configurations are also clearly specified.
Two products with similar descriptions may have different solar panels, battery capacities, light distributions or operating schedules.
Ask both quotations to identify:
- Solar panel rated power and dimensions.
- Battery chemistry and nominal energy capacity.
- Luminaire output and available photometric information.
- Controller functions.
- Lighting hours and dimming schedule.
- Any motion-sensing or remote-control functions.
Battery capacity should include its voltage as well as its amp-hour rating, or be expressed in watt-hours. An amp-hour figure by itself does not provide a complete basis for comparison.
Likewise, a wattage label alone does not explain how effectively a luminaire will illuminate the intended road.
Ask How the Operating Schedule Is Defined
Descriptions such as “all-night lighting” need further explanation.
The proposed schedule may include an initial period at a higher output, followed by reduced output later in the night. Motion sensing may also change how the light operates.
Ask the supplier to explain the expected operating sequence and the assumptions behind it, including the project location and seasonal solar conditions.
Compare both structures against the same lighting requirements. Otherwise, a difference in the proposed operating schedule may be mistaken for an advantage of the product structure.
Check Maintenance Access
An integrated appearance does not tell you how easily a product can be serviced.
Before ordering either structure, ask:
- How is the battery accessed?
- Can the controller and other serviceable parts be replaced?
- Does servicing require removal of the whole fixture?
- What replacement components are available?
- What information is needed to identify the correct spare part?
For an all-in-two system, also check access to panel connectors and cable protection.
Maintenance arrangements depend on the individual product design, so they should be confirmed rather than assumed from the category name.
Confirm Compatibility with the Pole
Both arrangements need to suit the proposed pole and mounting connections.
Provide the supplier with the pole-top diameter or arm dimensions, preferred mounting height and any existing installation drawings.
For an all-in-two system, include the solar panel and bracket in the pole review. Their weight and wind-exposed area form part of the complete equipment arrangement.
For an all-in-one system, confirm the complete fixture’s weight, mounting interface and permitted adjustment.
The final pole and foundation configuration should be checked for the equipment and site conditions involved.
Choose the Arrangement That Fits Your Project
An all-in-one design may be worth considering when a compact assembly and fewer separately mounted components suit the installation.
An all-in-two design may be worth considering when separate solar panel positioning is useful and the project allows for the additional bracket and connections.
The decision should follow the site layout, lighting requirements, installation method and maintenance expectations.
To discuss your solar lighting project, send ZHIYUN LIGHTING your project location, site photographs or drawings, estimated quantity and preferred lighting hours. These details provide a starting point for comparing suitable configurations.