A COB LED street light can be a good fit when the project values a compact high-output source paired with a dedicated optical lens and a robust heat-dissipation body. SMD designs distribute many smaller LEDs across a board and can offer flexible optical layouts. Neither technology is automatically better; the correct choice is the luminaire that meets photometric, thermal, reliability and maintenance requirements for the site.
Key facts for project buyers
- ST-001 uses large COB light sources with individual optical lenses.
- The confirmed family spans 30W, 50W, 100W, 150W, 200W and 250W.
- The product material confirms IP66 outdoor protection and an aluminum heat-dissipation body.
- COB and SMD should be compared as complete luminaires, not as chip labels alone.
- Photometric files, thermal data, driver quality and service access are more useful than generic technology claims.
What is the practical difference between COB and SMD?
COB, or chip-on-board, integrates multiple LED dies into one larger light-emitting surface. A street light may use one or several COB modules, each paired with a reflector or lens. SMD luminaires mount many separate LED packages across a printed circuit board, often with one small lens per LED.
The source geometry affects optical design and thermal concentration. COB systems concentrate more power in each module, so the heat path from chip to housing is critical. SMD systems distribute sources over a wider board, but still require sound thermal contact and driver design.
When can a COB street light make sense?
COB street lights can suit rural roads, bridges, industrial access routes and projects where a small number of strong optical modules is preferred. The ST-001 family uses one to several round COB modules as wattage increases, within an elongated aluminum body.
A COB label does not guarantee beam quality. Request the photometric file for the exact module count and lens. Check the road surface results at the proposed pole height and spacing.
- Projects that prefer distinct replaceable optical modules.
- Applications requiring a focused beam from each module.
- Roads where the available photometric distribution matches the geometry.
- Buyers who can verify the module-to-housing thermal path.
Where can SMD street lights offer advantages?
SMD arrays can provide many optical cells and flexible beam shaping across a larger luminous area. They are common in modern road luminaires and may offer high efficacy or a wide choice of standardized optics.
Maintenance varies by product design. Some SMD boards are easy to replace; others are sealed assemblies. Likewise, a COB module may be serviceable or fully integrated. Evaluate the actual construction rather than assuming one technology is easier to maintain.
How should thermal performance be compared?
LED lifetime depends strongly on junction temperature. For ST-001, the aluminum body and rear cooling structure provide the heat-dissipation path for the COB modules. Buyers should ask how thermal testing was performed and which ambient temperature applies.
Useful evidence includes measured case temperature, driver temperature, operating-temperature range and lumen-maintenance data. A visually large heat sink is not a substitute for test results.
A technology-neutral procurement method
Define the road result first: illuminance, uniformity, glare, CCT, controls, ingress protection and lifetime. Let COB and SMD proposals compete against the same design criteria.
Then compare input power, photometric layout, surge protection, housing, driver access, warranty and spare parts. This approach prevents the chip package from becoming a shortcut for overall quality.
- Exact photometric file and layout for the quoted model.
- Input power, lumens, CCT and CRI.
- Thermal and ambient-temperature evidence.
- IP rating, surge protection and driver details.
- Warranty scope and replacement-module availability.
Confirmed product data
| Power | Confirmed ST-001 dimensions |
|---|---|
| 30W | 350 × 150 mm |
| 50W | 500 × 230 mm |
| 100W | 720 × 280 mm |
| 150W | 860 × 330 mm |
| 200W | 950 × 350 mm |
| 250W | 1100 × 330 mm |
| IP rating | IP66 |
| Light source | COB LED |
| Housing | Aluminum heat-dissipation body |
Project recommendation
Consider ST-001 when its COB optical distribution, six-size power range and physical dimensions suit the project. Send pole height, spacing, road width, target standard, voltage and quantity so it can be evaluated against a complete photometric layout.
View the ST-001 COB LED Street Light product page and confirmed specifications.
Frequently asked questions
Are COB street lights brighter than SMD street lights?
Not automatically. Brightness and road performance depend on luminaire lumens, optics, power, mounting geometry and losses, not only the LED package type.
Do COB LEDs run hotter?
A COB module concentrates heat in a smaller area, making the thermal path important. A properly engineered housing can manage it, but test data should confirm the design.
Is SMD always more energy efficient?
No. Efficacy varies by LED, driver, optical losses, temperature and configuration. Compare verified luminaire efficacy for the exact models.
Where is ST-001 commonly evaluated?
Its product material supports road, bridge, parking-area and rural-construction applications, subject to photometric and mechanical verification.
