Frequently Asked Questions

LED Chips: Cree, Samsung, Lumileds,Luminus, Osram, Bridgelux,  MTC

Drivers: MeanWell, Moso, Sosen, Fushuo, Inventronics, Philips

These brands demonstrate outstanding quality and reliability in LED and power supply components. We prioritize sourcing materials from these premium suppliers for our products.

LED Brands CREE/Lumileds/Meanwell/Osram/Sumsung

Key Factors Affecting Luminous Efficacy:

1. More LEDs = Higher Efficacy
   Under the same conditions, increasing the number of LEDs improves efficacy.
   Example: A fixture using 144 Lumileds 3030 chips (each rated at 160 LM) will have higher efficacy than one using only 103 chips. This principle applies universally.
2. Wider Beam Angle = Higher Efficacy
   With all else equal, a larger beam angle results in greater efficacy.
   Example: A 150W floodlight with 90° lenses will outperform the same model with 60° lenses.
3. Non-Isolated Drivers Offer Higher Efficacy
   Under identical conditions, non-isolated driver solutions yield better efficacy than isolated ones.
   Example: A 150W floodlight using Brand M’s non-isolated driver (35S7P configuration) will be more efficient than one with an isolated driver (7S35P configuration).

That said, efficacy does not increase indefinitely—it is ultimately limited by the fixture’s structural design.

Our Performance:

• Our LED floodlights typically achieve over 130 LM/W, with high-performance models reaching 170 LM/W.
• For other lighting fixtures, we offer solutions with efficacy up to 196 LM/W.

For more details, feel free to contact us via email.

1. Installation Height

High Bay Lights:Suitable for high-ceiling environments, typically installed at heights of 6 meters (20 feet) or above. Commonly used in large spaces such as warehouses, factories, gymnasiums, etc.

Low Bay Lights:Suitable for low-ceiling environments, typically installed at heights below 6 meters (20 feet). Commonly used in low-height spaces such as supermarkets, parking lots, small workshops, compact warehouses, etc.

2. Beam Angle

High Bay Lights:Narrower beam angle (usually 45°~90°), providing more focused light distribution to project illumination farther to the ground. Ideal for high-ceiling environments requiring spotlighting effects.

Low Bay Lights:Wider beam angle (usually 90°~150°), delivering more diffused and uniform lighting. Suitable for low-ceiling environments requiring consistent and even illumination across a broad area.

3. Power & Brightness

High Bay Lights:Higher wattage (typically 100W~400W or more), offering higher center intensity and overall brightness, making them ideal for spaces requiring strong illumination.

Low Bay Lights:Lower wattage (typically 50W~150W), with moderate center intensity and softer brightness, suitable for spaces needing comfortable and uniform lighting.

4. Application Environments

High Bay Lights are suitable for large spaces, such as:Large warehouses、Factory workshops、Gymnasiums、Logistics centers、Aircraft hangars

Low Bay Lights are suitable for low-height spaces, such as、Supermarkets、Parking lots、Small workshops、Retail stores、Meeting rooms、Gymnasium

Of course, these distinctions are not absolute. The choice between High Bay and Low Bay lights depends on specific needs and environmental conditions. We can also combine different fixture characteristics to select the optimal shape and power for the lighting solution.

With IES files available, we can simulate lighting effects based on your space dimensions, helping you choose the most suitable lighting plan for your project.

1. Lower cost: Using 3030/2835 SMD LEDs to replace early integrated COB light sources significantly reduces costs.
2. 3030/2835 low-power SMD LEDs have longer lifespan, higher efficiency, and lower temperature rise:
   Benefiting from larger heat conduction area, they feature excellent heat dissipation performance and high heat dissipation efficiency, resulting in smaller lumen depreciation. This not only extends LED lifespan but also reduces indirect requirements for LEDs, while improving the overall effective service life of LED lights.
3. Higher luminous efficacy:
   Because LEDs are more dispersed, light loss is smaller. Combined with better heat dispersion and reduced mutual thermal resistance, LED luminous efficacy has increased by at least 50%, from early 90LM/W to current 150LM/W, even reaching maximum 210LM/W – something cylindrical high bay lights cannot match.

The difference between UFO HighBay Light and cylindrical LED HighBay light

Especially, UFO high bay lights have been continuously improved:

1. In heat sink shape and structure:
   With rich experience, the new design perfectly matches the heat dissipation requirements of corresponding power without leaving too much redundant functionality, avoiding resource waste and further reducing costs.
2. In light source application:
   When first developing isolated solutions, most used 6V1W 3030 or 3V0.5W 2835. But as 2835 costs decreased, more manufacturers adopted 6V1W 2835 in non-isolated solutions, not only improving luminous efficacy but also reducing costs.

With technological progress and enhanced product stability, UFO high bay lights will become more popular and endure for long time.

In recent years, improved versions of floodlights have emerged, such as modular floodlights and models with added square lenses. These enhancements increase the beam angle options, allowing a single design to adapt to multiple applications—representing a functional upgrade over traditional floodlights.

LED Spotlights, on the other hand, have a narrower beam angle (ranging from 3° to 90°, with common options including 3°/6°/10°/15°/25°/30°/45°/60°/90°) and cover a much wider power range—from as low as 5W/10W to as high as 1500W/2000W or beyond. Narrow-angle spotlights are primarily used for accent lighting, such as highlighting columns on hotel facades. They are also employed in long-distance or high-altitude installations, like lighthouse searchlights and tower crane lights on gantries (though not all applications are listed here).

In summary, floodlights generally have wide angles and moderate power, while spotlights offer narrower angles and a broader power range with higher maximum outputs. Essentially, floodlights can be considered a subset of spotlights.

the pc cover of the highbay light is melted

As shown in the images:

Before installation, it looked like Image 1. After some time in use, it turned into Image 2.

Image 3 shows the unit disassembled for analysis, only to reveal the condition seen in Image 4.

The client suspected the PC cover material was at fault. However, the PC cover supplier provided test reports proving the material met all heat resistance requirements. Skeptical, the client sent an unmelted PC cover for independent testing—only to confirm the supplier’s data was correct. The client was baffled and didn’t know what to do. After consulting peers with no solution, they reluctantly reached out to me.

I had the client disassemble a light with an intact PC cover and send me high-resolution photos, while confirming they weren’t overloading the fixtures.
After reviewing the test reports and ruling out the PC material, I had them measure the internal dimensions of the PC cover—which were nearly identical to the LED board’s size. In other words, the PC cover was almost touching the LED board. My conclusion: The LED board’s excessive heat, combined with the tight PC cover clearance, caused the melting. Under slightly higher ambient temperatures, the issue would persist.

My solution:

1. Reduce the aluminum PCB diameter by 2mm to increase the gap between the board and PC cover.
2. Use an aluminum PCB with true 2.0 thermal conductivity + 2.0mm thickness + 1oz (35μm) copper foil.

After implementing these changes, the client reported no further PC cover melting. This incident also revived our business relationship—they resumed ordering from me, including both finished products and semi-finished items (mostly LED PCBA).

The experience left me reflecting: Had the client not sought my help, their problem might have remained unsolved, costing them customers and losses. Conversely, had I been reluctant to assist due to past lack of collaboration, I’d have missed the chance to win them back.