Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner
General ETA ~ Feb 5–Feb 9
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The Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner – High-Powered Comfort for Off-Grid Adventures
Too hot inside your RV or caravan?
The Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner solves that problem.
Delivering 5,100–13,800 BTU cooling and 5,100–13,000 BTU heating, it keeps your space perfectly comfortable.
Compact, low-profile, and inverter-controlled, it saves rooftop space while giving you precise climate control.
With Wi-Fi and remote control, you can manage the temperature from anywhere.

Key Features - Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner
- 5,100–13,800 BTU Cooling / 5,100–13,000 BTU Heating: Flexible output for any season.
- 48VDC Inverter Operation: Efficient power use and smooth temperature control.
- Low-Profile Rooftop Design: Only 252mm height to reduce drag.
- Dual-Fan Structure: Quiet operation with minimal vibration.
- Smart Control: App and remote for convenient temperature adjustment.
- Durable Build: High-strength metal base and EPP inner frame.
Why you'll love the Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner
Powerful and Flexible: The unit adjusts cooling and heating between 5,100 and 13,800 BTU. This flexibility ensures comfort whether it’s a sweltering day or a chilly morning.
Silent Operation: Dual-fan design keeps noise and vibration low. You can sleep or work without the distraction of a loud air conditioner.
Smart Control Options: Wi-Fi and remote control let you manage the unit from anywhere. Set the temperature before entering for instant comfort.

Space-Saving Low Profile: At just 252mm tall, it minimizes rooftop drag. This is ideal for vehicles with limited roof clearance.
Built to Last: Made with a HIGHLY compressor, high-strength metal base, and EPP frame. Durable construction ensures years of reliable performance and peace of mind.

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Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner Specifications
- Power supply: 48VDC
- Rated cooling capacity: 11900 (5100 -13800) BTU/h
- Rated Heating capacity (HP): 11600 (5100 -13000) BTU/h
- Current (c/H): 12-32.8A / 10.5-27.8A
- Power consumption (C/H): 583-1752W / 510-1333W
- Net Dimensions (Rooftop): W738 x H253 x L1056 (mm)
- Net Weight Rooftop: 42Kg.
- Ceiling opening dimension: suitable for 400x400mm, or 362*362mm optional.
- Compresor manufacturer: HIGHLY
- Base chasis: High Strength Metal
- Inner frame material: EPP
- EER/COP: 2.7/3.0
- Wifi control and Remote Control: included
- Ceiling Atmosphere Lamp (Multicolor LED strip): included
- Noise Level (L/M/H), indoor: 46/49/52 dB(A)
What's Included
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- Cool-J Super Quiet 48VDC Inverter Rooftop Air Conditioner
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