What is the panel light?

What is a flat panel light?

 A flat panel light is a ceiling light that can be round or square in shape. They produce bright illumination through light-emitting diodes (LEDs). Flat panel lights can be installed in a recessed, surface-mounted or suspended manner on the ceiling.

Comparison of Basic Parameters

Size	Watt	Area (square feet)	Power density (W/sq ft)	Efficiency	Dimension	Certification
1ft×4ft	40W	4	10W/ft²	130 LPW	303x1213x35mm	ETL/cETL/FCC/CE/RoHS approval
2ft×2ft	40W	4	10W/ft²	130 LPW	603x603x35mm	ETL/cETL/FCC/CE/RoHS approval
2ft×4ft	72W	8	9W/ft²	130 LPW	603x1213x35mm	ETL/cETL/FCC/CE/RoHS approval

 

Application scenario analysis

• 1ft × 4ft 40W: 
  
  • Advantages: Narrow and long design, suitable for linear arrangement (such as office partitions, supermarket shelf lighting).
    
  • Disadvantages: Limited coverage area, requires multiple units to be used together.
    
• 2ft × 2ft 40W: 
  
  • Advantages: Square design, compatible with standard ceiling grids (such as meeting rooms, classrooms).
    
  • Disadvantages: Poor matching with long-shaped spaces.
    
• 2ft × 4ft 72W: 
  
  • Advantages: High energy efficiency, large coverage area per lamp, reduces the number of installations (such as in warehouses, open-plan offices).
    
  • Disadvantages: Higher power consumption, need to confirm the circuit's load capacity.