Portable 2200W Off-Grid Grennova Solar Kit 40W Premium Panel 60A MPPT Controller True Power 12V/24V To110V/220V Inverter Camper Home Backup
Grennova Solar Panel:
Model: GRE-SP18
Peak Power: 40W(Max)
Solar Cell Type: Monocrystalline Silicon
Surface Material: TPF+EVA2+Monocrystalline Cell+EVA2+ETFE
Open-Circuit Voltage (VOC): 18V
Maximum Power Point Voltage (VMPP): 12V
Output Ports: Dual USB and DC
Panel Dimensions: 420 x 280 x 2 mm
Weight: 400 g (14.1 oz)
Grennova Controller:
Model: GRE-C
Voltage: 12V/24V (auto-detect)
Current: 60A
Compatible Batteries: Lead-acid batteries / Gel batteries / LiFePO? batteries
Dimensions: 133 x 70 x 35 mm
USB Outputs: 5V/2.5A (max)
DC Port: 55 x 21 mm
Grennova Inverter:
Model: GRE-Gemini
Model Number: GRE-G-2200W
Rated Power: 1100W
Peak Power: 2200W
Input: DC 12V/24V
Output: AC 220V 50Hz or 110V 60Hz(selectable)
Type: Dual Voltage Input
Waveform: Modified Sine Wave
Efficiency: >90%
Number of outlets: 2
Number of USB ports: 2
Power As Promised
No More Fake Ratings! True Continuous Output | Professional-Grade Off-Grid Solar Kit
Built to Last: Grennova's Reliable Power Inverter + MPPT Controller for Safe, Stable Power
Stop falling for exaggerated peak wattages and instead focus on more realistic performance specifications. The Grennova Gemini series provides an honest of continuous AC power and of surge power. Encased in a durable, heat-dissipating aluminum shell, it’s your most reliable off-grid companion.
Grennova Solar Panel:
Model: GRE-SP18
Peak Power: 40W(Max)
Solar Cell Type: Monocrystalline Silicon
Surface Material: TPF+EVA2+Monocrystalline Cell+EVA2+ETFE
Open-Circuit Voltage (VOC): 18V
Maximum Power Point Voltage (VMPP): 12V
Output Ports: Dual USB and DC
Panel Dimensions: 420 x 280 x 2 mm
Weight: 400 g (14.1 oz)
Grennova Controller:
Model: GRE-C
Voltage: 12V/24V (auto-detect)
Current: 60A
Compatible Batteries: Lead-acid batteries / Gel batteries / LiFePO? batteries
Dimensions: 133 x 70 x 35 mm
USB Outputs: 5V/2.5A (max)
DC Port: 55 x 21 mm
Grennova Inverter:
Model: GRE-Gemini
Model Number: GRE-G-2200W
Rated Power: 1100W
Peak Power: 2200W
Input: DC 12V/24V
Output: AC 220V 50Hz or 110V 60Hz(selectable)
Type: Dual Voltage Input
Waveform: Modified Sine Wave
Efficiency: >90%
Number of outlets: 2
Number of USB ports: 2
What's in the Box
Everything You Need to Power Up
1 × Solar Panel
1 × Charge Controller
1 x Power Inverter
Accessories Included:
(1) Controller Alligator Clips ×1;
(2) Inverter Alligator Clips ×1;
(3) DC Cables ×2;
(4) Carabiners ×2;
(5) Suction Cups ×4;
(6) User Manual ×1
Real Rating vs General Inverters
Why Choose Grennova?
Unlike generic inverters that boast "2200W" but fail at 500W, Grennova guarantees a smooth, stable, and tested output. Our dual-circuit boards and premium capacitors prevent messy waveforms and potential overheating.
Frequently Asked Questions (FAQ)
Q1: Why won't it charge under indoor lights or on my balcony?
A: Solar panels require UV rays from natural sunlight to generate power. Artificial light sources like LEDs, desk lamps, or flashlights do not have the necessary intensity to activate the cells.
Solution: Please use the panel outdoors under direct sunlight.
Q2: Why is the charging speed so slow when placed behind a window?
A: Glass reflects and filters out over 60% of solar energy. Even if it looks bright, the energy required for a high-speed charge is blocked.
Advice: For best results, mount the panel outside your tent, RV, or backpack using the reinforced eyelets.
Q3: Why is the output not reaching the "40W" rating?
A: "40W" represents the Peak Power under Standard Test Conditions (STC: 1000W/m2, 25°C).
Real-world factors: Output varies based on sun intensity, time of day, angle of the sun, and atmospheric haze. Power fluctuations are a normal physical characteristic of all solar products.
Q4: Will the panel work if it is partially shaded?
A: Monocrystalline cells are highly sensitive to shadows. If even 10% of the panel is covered by a leaf or shadow, the power output can drop by more than 50%.
Operation Tip: Ensure the entire surface of the panel is fully exposed to clear sunlight with zero obstructions.
Q5: Why does my multimeter show only 80V-100V (or 180V-200V) instead of 110V (or 220V)?
A: This is absolutely normal for a Modified Sine Wave inverter. Standard cheap multimeters cannot accurately measure this waveform. To get the correct 110V/220V reading, you MUST use a multimeter equipped with the "True RMS" (Root Mean Square) function.
Q6: The red light is on, it's beeping, and there is no power. Is it broken?
A: No, your inverter's safety shield has activated to protect your devices! This usually happens for two reasons:
1.Battery is depleted (Low Voltage): Recharge your battery immediately.
2.Overload: The appliance you plugged in requires more power than the inverter can provide (especially motor-driven devices). Unplug it and restart the inverter.
Q7: Can this run my microwave, air conditioner, or coffee maker?
A: No. Appliances that generate heat or contain heavy motors (Inductive Loads) require massive startup power and a Pure Sine Wave to operate safely. For these heavy-duty appliances, please explore our Grennova Nova Series (Pure Sine Wave) inverters.
Q8: Why did it spark when I connected the clips to the battery?
A: A small spark when the terminal connects to the battery is a normal and safe physical reaction. It is simply the internal heavy-duty capacitors charging up.