SPECIFICATIONS

The Sunster 12V/24V Electric Roof Air Conditioner is a compact rooftop cooling system designed for RVs, trailers, camper vans, trucks, and off-grid applications. Unlike traditional RV air conditioners that require shore power or generators, these DC-powered units are designed to run directly from vehicle batteries or auxiliary battery systems.

Overall Rating: 8.7/10

Best for: RV travelers, truck drivers, campers, off-grid users, and anyone needing cooling without running an engine or generator.

Key Features

• Power Options
  • 12V / 24V DC operation
  • Designed for vehicle electrical systems
  • Compatible with RV battery banks and solar setups (with proper sizing)
• Roof-Mounted Design
  • Installs on RV, camper, trailer, or truck roof
  • Saves interior floor space
  • Provides even overhead cooling
• Automatic Temperature Control
  • Digital thermostat
  • Maintains set temperature automatically
  • Reduces unnecessary power consumption
• Applications
  • RVs
  • Travel trailers
  • Semi-truck sleeper cabins
  • Camper vans
  • Construction vehicles
  • Mobile workshops

Cooling Performance

Typical rooftop DC air conditioners in this category provide:

• Cooling capacity commonly around 8,000–12,000 BTU (varies by model)
• Effective cooling for:
  • Small to medium RVs
  • Truck cabins
  • Sleeping areas
  • Compact living spaces

Performance depends heavily on:

• Insulation quality
• Interior volume
• Outside temperature
• Battery capacity

Advantages

✔ Runs from DC power without needing a generator

✔ Allows overnight cooling without idling a vehicle

✔ Roof installation saves valuable interior space

✔ Automatic temperature regulation improves comfort

✔ Ideal for off-grid camping and boondocking

✔ Lower noise than many gasoline generators

✔ Works well with solar + lithium battery systems

Air volume: 150-500m³/h

Brand Name: Sunster

Certification: CE

Circulation mode: Internal circulation Mode

Driving Mode: Host Driven Mode

Fan power: 80W

High-concerned chemical: None

Is it Powered: Non-powered

Item Type: Complete machine

Model number: S-AC2

Power on status: Default Last Shutdown Status

Rated voltage: 12V/24V

Refrigerant: R1234yf / R134a (NOT include)

Refrigeration capacity: 1KW-3KW

Temperature Regulation Mode: Temperature Regulation Mode

Temperature regulation method: Temperature controller adjustable type