Introduction
"Why do some solar street lights last 10 years while others fail frequently?" Discover 5 golden rules to choose the right solution!

1.Power & Brightness

• Formula: Area (㎡) = Wattage (W) × Efficacy (lm/W) ÷ Target Illuminance (lux)
  
• Example: 50W light (150lm/W) covers 50㎡ at 10lux.
  2.Battery & Backup
  
• Rainy regions: ≥5-day LiFePO4 battery (e.g., 120Ah)
  
• Dry zones: Standard 3-day backup
  3.Panel Efficiency
  
• Monocrystalline PERC vs Polycrystalline: Up to 8% efficiency gap
  
• Tilt angle: Latitude ±5° (China reference table)
  4.Environmental Fit
  
• Coastal: IP68 + 316 stainless steel
  
• Polar: Self-heating battery (-40℃ startup)
  5.Smart Features
  
• Basic: Light/time control
  
• Advanced: Motion sensor + APP + Self-diagnosis