50W LFP Solar Lighting System Description

    Neptun's LFP Solar Lighting System features a long life, fully rechargeable unit that allows for complete OFF GRID operation. The exceptional storage system allows for up to 3 Days Autonomy / Use without a single recharge. Neptun's solar lighting systems are ideal solutions for areas where electricity is unavailable or you need to eliminate many of the high costs associated with standard lighting installations.

50W LFP Solar Lighting System

Application, Features and Benefits
  • 50W High Output Neptun LED Fixture of your choice. (Street, Area, Flood, Facade, Etc.)
  • 100Ah LFP (Lithium Iron Phosphate) battery with 5,000 cycles estimated life.
  • High efficency driver & MPPT charge controller supplied with fixture.
  • 250W Polycrystalline Solar Panel with slip-fitter mounting bracket.
  • Corrosion resistant electrocoat finish (custom colors available)
  • Square or Round pole mounting brackets included.
  • 5 Year Warranty on complete system.
  • Compatible with any Neptun LED 24VDC Lighting Fixtures.

Fixture Specifications 

 Type :
  LED (see product sheet for complete specifications)
 Wattage :  50W
 Projected (L70) @ 25°C :  > 100,000 hrs.
 Lumens per Watt :  >100
 Input Line Voltage :  24vdc
 Max Line Current :  2.18A


Charge Controller Specifications

Type :
 Programmable Intelligent MPPT (included in fixture)
Voltage : 12 vdc or 24 vdc
Output Current : 2400mA
Overvoltage Protection : (24V) 32.0V
Efficiency of Constant Current : 90% ~ 96%
Operating Temp : -40°C ~ +70°C
IP Rating : IP68

Battery Specifications

 Battery Type :
  Sealed Lithium Iron Phosphate (LFP)
 Weight :
  130 lbs. (includes enclosure and mounting arm)
 Dimensions :  (Pole) 12.75"L x 9.0"W x 22.5"H (Gnd.) 25.0"L x 9.5"W x 13.5"H
 EPA Rating :
  2.0ft.²
 Design Life :
  15 Years (5,000 cycles)
 Usage :  Solar
 Maintenance :  Maintenance Free
 Nominal Capacity :  100Ah
 Voltage :  24 vdc
 Discharge Cutoff :  Auto @ 20% Capacity
 Charge Operating Temp. :  0°C ~ 45°C
 Storage Temp. :  -20°C ~ 55°C
 Storage Humidity :  < 85%
 UL Standard 1703 :  Yes
 Warranty :  5 Years

Solar Panel Specifications

 Type :
  Polycrystaline - Low-iron solar glass front panel w/ anti-reflective surface
 Cell Arrangement :  60 (6 x 10)
 Wattage :  250w
 Frame :  Silver Anodized Aluminum Alloy
 Mounting :
  Adjustable Slip Fitter
 Weight :
  65 lbs. (includes mounting brackets)
 Dimensions :
  39.25"L x 2.0"W x 66.5"H
 Operating Module Temp. :
  -40°C ~ +85°C
 Positive Power Tolerance :
  0 ~ +5w
 Nominal Power (WP) :
  ≥ 250w
 Voltage @ Normal Power :
  30.8V
 Current @ Normal Power :  8.14A
 Open-Circuit Voltage :  37.5V
 Short-Circuit Current :  8.67A
 Maximum System Voltage :  600 vdc
 Maximum Reverse Current :  15A
 Module Efficiency :  15.05%
 EPA Rating :  16.8 ft.²
 Product Warranty :  10 Year
 Performance Warranty :  25 Year @ 80% output