What Is a Solar Street Light? Types, Sizing & Project Use

A solar street light is an off-grid outdoor lighting system that uses a photovoltaic (PV) panel to charge a battery during the day and power an LED luminaire after dark. A project-grade system also includes a charge controller, optics, mounting structure and a programmed lighting profile.

For roads, parking areas and public spaces, the right solar street light is selected by more than wattage. Road width, pole height, target light level, operating hours, local solar conditions, low-sun autonomy, wind exposure and maintenance access must all be checked before a model is specified.

Quick project check: prepare the installation city, road width, pole height, pole spacing, operating schedule, autonomy target and quantity before asking for a recommendation.

Komponen utama

• Modul PV (panel mono/sel separuh),
• Pengawal pengecas MPPT/PWM,
• Bateri (LiFePO₄ atau litium-ion arus perdana untuk kitaran hayat yang tinggi),
• Lampu LED berkesan tinggi & optik,
• Tiang/pembawa dan pendawaian, sensor pilihan/pemantauan jauh.

Bagaimana ia berfungsi (kitaran hari/malam)

1. Hari: PV menukarkan cahaya matahari kepada arus terus (DC) → pengawal mengecas bateri mengikut algoritma yang dioptimumkan (MPPT meningkatkan hasil).
2. Malam: Pengawal membekalkan kuasa kepada LED mengikut profil penggelapan (contohnya, 100% pada waktu penghunian puncak; 30–50% pada waktu lewat malam) untuk mengimbangkan tahap cahaya dan autonomi tenaga. (Amalan umum dalam reka bentuk pencahayaan luar rangkaian.) 

For a component-by-component explanation of charging, storage and control, read how solar lights work from sunlight to light at night.

Jenis dan bila menggunakannya

System type	Best fit	Choose it when	Use caution when	Project inputs to confirm
Lampu Jalan Solar Serbaguna	Community roads, pathways, parks, parking areas and fast-deployment projects	You want compact equipment, minimal cabling and straightforward installation.	The site needs very large battery capacity, flexible panel orientation or extended low-sun autonomy.	Road width, pole height, mounting space, dimming profile and autonomy target.
All-in-Two Solar Street Light	Municipal roads, main corridors and sites where panel orientation needs more flexibility	You need a separate PV panel position while keeping the battery and luminaire in a compact assembly.	The buyer requires the smallest possible fixture or has very limited pole space.	PV orientation, pole-arm design, wind load, battery capacity and lighting layout.
Lampu Jalan Suria Jenis Berpecah	Wide roads, higher-output public lighting, rainy-season projects and remote infrastructure	You need more flexibility to size and locate the PV panel, battery and luminaire separately.	The project cannot support more detailed installation, cabling and maintenance planning.	Solar resource, low-sun days, battery service access, cable route, theft risk and civil-work scope.

Need a deeper comparison? Read our All-in-One vs All-in-Two vs Split Solar Street Lights guide before choosing a system architecture.

Model Lampu Jalan Solar All-In-Two

Kami All-In-Two Solar Street Light is available in the JAGUAR, Falcon, and Bison series. Utilizing the latest semi-integrated design, the lithium battery and solar controller are housed within the light casing, while the solar panel is mounted externally. A separate design of the solar panel ensures a large solar panel capacity to achieve big LED output and the semi-integrated design simplifies installation while significantly enhancing anti-theft security.

Model Lampu Jalan Solar Serbaguna

Kami Lampu Jalan Solar Segalanya dalam SatuIa tersedia dalam siri SIRIUS (INL-AIO9), GALAXY (INL-AIO6), ALIEN (INL-AIO5), dan POLARIS (INL-AIO2). Menggunakan reka bentuk bersepadu terkini, bateri litium, pengawal solar, dan panel solar semuanya ditempatkan dalam sarung lampu. Reka bentuk ini mempermudah pemasangan sambil meningkatkan keselamatan anti-curi dengan ketara.

For commercial, municipal and public-infrastructure applications, explore commercial solar street light systems and compare the project inputs for each type.

How to Select a Solar Street Light for a Road Project

Start with the road or site, not a nominal wattage. The lighting layout should define the required pole height, spacing, optical distribution, illuminance or luminance target, and uniformity. The solar system is then sized around the LED load, dimming schedule, local solar resource, system losses and required low-sun autonomy.

Use EN 13201 or IES road-lighting criteria where applicable, then verify the proposed layout with the relevant photometric files. A higher-wattage fixture is not automatically the better choice if its optics, pole layout or solar-energy budget do not fit the site.

Before requesting a quotation, confirm:

• Road width, traffic pattern and the area to be lit
• Pole height, arm length and planned pole spacing
• Required operating hours and dimming profile
• Installation city, shading, dusty season and expected low-sun period
• Wind, corrosion and foundation requirements
• Maintenance access, monitoring needs and project quantity

Sizing Checks Before You Request a Quote

The example below explains the calculation logic only. Final PV and battery sizing must be based on the actual installation location, solar resource, temperature range, required lighting profile, component specifications and approved engineering assumptions.

Masukan (contoh)

• Kuasa LED: 40 W
• Profil kelunturan: 6 jam @ 100% + 6 jam @ 30%
• Kecekapan sistem (pengawal/pemasangan wayar): 85%
• Bateri: Litium, reka bentuk DOD = 80%
• Voltan sistem: 24 V
• Hari-hari autonomi: 2
• Jumlah Jam Puncak Matahari (PSH) bagi bulan terburuk: 4.0 jam sehari
• Pengurangan PV (suhu/kebocoran/penuaan): 0.75

1) Tenaga LED harian (Wh):

• 40 W × 6 h = 240 Wh
• 0.3 × 40 W × 6 jam = 72 Wh
• Jumlah = 312 Wh/hari

2) Sertakan kerugian sistem:

• Tenaga harian yang disesuaikan = 312 ÷ 0.85 = 367.06 Wh/hari

3) Kapasiti bateri (Ah):

Formula: Ah = (Wh Harian × Autonomi) ÷ (V Sistem × DOD)

• (367.06 × 2) ÷ (24 × 0.8) = 38.24 Ah
• Cadangan: pilih ≥ 40 Ah pada 24 V (≈ 960 Wh boleh guna) untuk margin.

4) Saiz susunan PV (Wp):

Formula: Wp = Wh Harian ÷ (PSH × PV derate)

• 367.06 ÷ (4.0 × 0.75) = 122.35 Wp
• Tambah margin reka bentuk ≥ 20% → 150–180 Wp disyorkan.

Peraturan am:

• Autonomi tipikal ialah 2–3 malam; di kawasan musim sejuk/hujan yang keras, pertimbangkan 5–7 malam.
• LiFePO₄ menyokong DOD yang lebih tinggi, membantu mengurangkan isipadu dan jisim sambil mengekalkan hayat kitaran.

For a project-specific calculation, send the site location, operating schedule, target autonomy, road geometry and lighting target. Inlux Solar can match the system configuration to the project inputs and provide the relevant technical documentation.

What Makes a Solar Street Light Reliable in Real Conditions?

Solar street light reliability is decided by the complete system, not by the lamp head alone. A suitable design considers the local solar resource, battery temperature, panel soiling, corrosion exposure, wind loading, optical performance and the practical ability to maintain the installation.

For hot, dusty, coastal or long-rainy-season locations, ask how the proposed PV panel, battery, controller, housing, pole and mounting system are configured for those conditions. The quotation should also state the operating profile and the assumptions used to calculate low-sun autonomy.

• Solar resource and seasonal shading
• Battery temperature and usable capacity
• Panel cleaning access and dust accumulation
• IP/IK requirements and corrosion exposure
• Pole, bracket, foundation and wind-load design
• LED optics, dimming profile and maintenance access

Need a Solar Street Light Design for Your Project?

Send your project location, road width, pole height, pole spacing, target lighting level, operating schedule, autonomy target and quantity. Our engineering team can recommend a suitable system type and provide product documentation, photometric files and layout support where available.

See solar street light project examples for applications across roads, communities and public infrastructure.

Senarai semak pemasangan dan penyelenggaraan

For the on-site process, use our solar street light installation guide covering site survey, foundation, pole erection and commissioning.

• Lokasi & naungan: konfirmasi PSH pada bulan terburuk dan elakkan teduhan pokok/bangunan.
• Beban tiang dan angin: Periksa kawasan layar berkesan (terutamanya untuk kepala serba boleh) dan gunakan flange serta sangkar sauh yang mencukupi.
• Optik & penjejakan: Padankan lebar jalan dan jarak mundur; sahkan iluminasi/keseragaman di tapak.
• Perisian pemacu: program profil pengelapan berasaskan masa atau sensor; log trend voltan/arus.
• Penjagaan rutin: Bersihkan panel setiap suku tahun hingga enam bulan sekali (lebih kerap di kawasan berdebu/berpantai); pasangkan semula torque pada pengikat; semak kesihatan bateri setiap tahun.

Pensijilan dan penarafan

• Penarafan IP (IEC 60529): untuk jalan raya dan persekitaran pantai, IP66 biasanya ditetapkan.
• Penarafan IK (EN/IEC 62262): IK08–IK10 untuk ketahanan terhadap impak/vandal.
• UN38.3: ujian pengangkutan wajib untuk bateri litium (udara/laut/darat).
• Gunakan IES RP-8 atau EN 13201 sebagai asas penerimaan anda untuk projek jalan raya dan tempat letak kereta.

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