COB and SMD LED Light Manufacturer in India: Industrial Lighting Products and Applications

The right technology is a key part of ensuring the light source provides enough light, energy efficiency and durability in industrial applications. There are various LED design types for SMD and COB LEDs, depending on the application of the lights.

SMD LEDs allow flexibility in LED arrangement and light distribution and can be used in street lights, flood lights, high bays and industrial well glass luminaires. The COB LED is an LED with several LED chips on a smaller area that can be employed to achieve focused and intensive lighting.

Brightness and wattage are not the only factors to consider when choosing an appropriate bulb for industrial applications. The entire luminaire design, from the driver to the optical design, thermal management and protection, is important.

What Is SMD LED Technology?

SMD (Surface Mount Device) technology, the LED packages are soldered to a printed circuit board (PCB). More/less LEDs, spacing, and configuration of the LEDs can be customised for different lighting applications.

Key advantages of SMD LEDs include:

• Flexible LED layout and luminaire design.

• Options for different beam patterns and light distribution.

• Adaptability to street lights, flood lights, high bays, and well glass lights.

• More thermal design options and flexible PCB layout. 

• Application-specific optical and electrical configurations.

Because of these attributes, SMD technology can be used in many industrial and outdoor lighting applications.

What Is COB LED Technology?

A new technology, called COB (Chip-on-Board), has been developed to mount multiple LED chips on one base, which creates a small light-emitting area and brings high density of LED chips.

COB LEDs can be suitable for:

• Spot and accent lighting.

• Downlights.

• Compact, high-intensity luminaires.

• Applications requiring a concentrated light source.

COB can also be used in selected industrial lighting designs. Its suitability depends on the required light distribution, thermal performance, and complete luminaire construction.

SMD vs COB LED: Key Technical Differences

LED Construction

Using SMD, the designer can place the LEDs anywhere on a PCB and can combine them with the proper optics. The flexibility can be used to achieve the required lighting on roads, industrial yards, warehouses, etc and big working areas.

Light Distribution

COB makes a small, concentrated light source, which may be beneficial for concentrated lighting. The final beam pattern for either technology is dependent upon the optical design.

All LEDs (SMD or COB) create heat when they are in use. Good heat dissipation is a must for performance and reliability.

Thermal Management

No matter what type of LED is used (SMD or COB LED), they generate heat when they are working. Many aspects of good heat dissipation must lead to good performance and reliability.

SMD may be one LED or more than one LED soldered onto a PCB; COB is a cluster of LEDs in a smaller space. Actual thermal performance will depend on the complete design, heat sink, substrate, current and enclosure.

Efficiency and Lifespan

No assurance of more efficiency or longevity with SMD or COB. The performance depends on the quality of the LED(s), efficiency of the LED driver, temperature of the LED(s) in operation, electrical protection and LED luminaire design.

Consider luminous efficacy (lumen per watt [lm/W]); lumen output; driver specifications; and product test data when comparing products:

Why SMD Is a Better Choice for Industrial Lighting

SMD technology is a helpful flexibility when you want to light a large area or want a light distribution in a particular pattern.

It can be designed for:

• Street and highway lighting.

• Industrial roads and parking areas.

• Flood lighting for yards, warehouses, and loading zones.

• High bay lighting for factories and workshops.

• Well glass lighting for industrial premises.

When the entire luminaire has received the proper hazardous-area certification, select applications.

The appropriate product must be chosen based on product height, lighting needs, ambient temperature and environment.

Pyrotech SMD Flameproof Well Glass

Pyrotech Technologies provides industrial LED lighting solutions for demanding applications. The supplied specifications for its SMD Flameproof Well Glass include:

LED life:50,000 hours.

Ingress protection: IP66.

Operating temperature:-20°C to +60°C.

Power factor: Greater than 0.95.

THD: Less than 10%.

Driver efficiency: Greater than 85%.

Driver: Constant-current LED driver.

Protection: Surge protection and 440 VAC over-voltage protection.

Enclosure: Die-cast aluminium.

Optical design: Application-specific light angle.

The product information supplied for this article also describes an optical pattern designed for efficiency. Verify all specifications against the current datasheet for the exact model before publication or procurement.

Industrial Applications of SMD LED Lights

Street and Outdoor Lighting

SMD luminaires may be used on roads, highways, industrial roads, parking areas, campuses, and for public infrastructure.

Flood Lighting

These are used in industrial yards, warehouses, construction sites, sports areas, plant premises and loading areas.

Industrial Lighting

Appropriately designed SMD luminaires may be needed at factories, manufacturing plants, power plants, steel plants, cement plants, workshops and warehouses.

Hazardous-Area Lighting

SMD technology can be implemented in luminaires designed to be used in hazardous areas, the LED package does not offer flameproof protection. The entire product needs to be rated to the proper hazardous area classification.

Why Choose Pyrotech Technologies?

Pyrotech Technologies is the best choice for fireworks because of the following reasons:

Pyrotech Technologies specialises in lighting solutions for industrial and hazardous areas. Around 50 years of experience in industrial lighting, the company says.

It features a line of flameproof well glass lights and other types of industrial lighting. The company also gives a description of application-specific optical design, industrial product development and customisation if technically possible.

Pyrotech's website provides testing and documentation for various aspects like LM-79, LM-80, IEC 61000, ingress protection, surge testing and BIS requirements, etc. It is important to check the specific test reports and approvals for the product prior to making compliance claims.

Frequently Asked Questions (FAQ's)

What is the difference between SMD and COBLED technology?

SMD: LED packaged on a PCB; COB: LED assembly using multiple LED chips in a single base. The LED lights can be arranged in various ways, and COB is a light source with a high density.

Is SMD better than COB for industrial lighting?

The design flexibility of SMD makes it an attractive option in street lights, flood lights, high bays and well glass luminaires. However, the optimal technology will vary according to the particular application's light and operational requirements.

Do SMD LEDs last longer than COB LEDs?

Not necessarily. It is not based on the type of LED package, but depends on the junction temperature, operating current, LED driver quality, thermal management, electrical protection and environment.

Why are SMD LEDs used in street lights and flood lights?

SMD LEDs can be arrayed on a PCB and combined with optics to create different light patterns for roadway or wide area lighting applications.

Can SMD LEDs be used in hazardous areas?

Yes, as long as the entire luminaire is rated for the hazardous area and installation. The technology of SMD is not enough to render the light flameproof.