18W Solar Panel Kit 4000W Inverter & 30A Charge Controller

Complete Solar Power System Kit — Home, Camping & Off-Grid Ready

Power your home, campsite, or off-grid setup with this all-in-one solar power system. This complete kit bundles a 18W monocrystalline solar panel, a 4000W peak modified sine wave power inverter, and a 30A PWM solar charge controller — everything you need to start harvesting solar energy and powering your devices right out of the box.

Made in Mainland China.

What's in the Kit?

• 18W Mono Solar Panel — Compact and lightweight (0.7 kg), this monocrystalline panel delivers 12V/1.5A DC output and a 5V/1.7A USB output. Aluminum substrate construction ensures durability. Dimensions: 420 × 280 × 2.5 mm. Includes DC cable and DC alligator clip.
• 4000W Peak Power Inverter — Converts 12V DC battery power to 110V AC. Rated continuous output is 300W (peak 4000W). Features one AC outlet and dual fast-charge USB ports. LED status display shows input/output voltage at a glance. Modified sine wave output. Dimensions: 165 × 112 × 56 mm.
• 30A PWM Solar Charge Controller — Auto-detects 12V/24V battery systems. LCD digital display, dual USB output (5V/2.1A), and adjustable charge/discharge parameters. Operating temperature range: −35°C to +60°C. Dimensions: 148.5 × 78 × 35 mm.

Key Features

• LED Status Indicators: Green LED signals normal inverter operation; Red LED activates when any protection mode is triggered (low/high voltage, over-temperature, or overload), making it easy to identify and address issues quickly.
• LED Voltage Screen Display: Monitors battery input voltage and AC output voltage in real time. Cigarette lighter cable for convenient 12V socket use — for loads above 150W, use the included crocodile clips directly on the battery.
• Dual Fast-Charge USB Ports: Two USB ports plus one AC outlet let you simultaneously charge phones, laptops, tablets, and other electronics — perfect as a portable emergency power supply.
• Multi-Layer Protection System: Built-in fuses and a cooling fan defend against overheating. Comprehensive protection includes over-voltage, overload, over-current, under-voltage, short-circuit, and over-temperature safeguards.
• Compact & Portable Design: Lightweight form factor makes this kit ideal for camping trips, RV travel, remote worksites, and backup home power.

Technical Specifications

Solar Panel (18W)

• Power: 18W ± 5%
• DC Output: 12V / 1.5A
• USB Output: 5V / 1.7A
• Type: Monocrystalline
• Size: 420 × 280 × 2.5 mm | Weight: 0.7 kg

Power Inverter (4000W Peak)

• Input Voltage: DC 10.5V–15V (12V battery)
• Output Voltage: AC 110V | Frequency: 60Hz
• Peak Power: 4000W | Rated Continuous Power: 300W
• Waveform: Modified Sine Wave
• Size: 165 × 112 × 56 mm

30A Charge Controller

• Charge Current: 30A
• Voltage: 12V / 24V Auto-detection
• Display: LCD Digital
• USB Output: 2× 5V / 2.5A (max)
• Float Charge: 13.7V (adjustable) | Discharge Stop: 10.7V (adjustable)
• Operating Temperature: −35°C to +60°C
• Size: 148.5 × 78 × 35 mm

What's in the Box?

• 1× 4000W Peak Power Inverter
• 1× Battery Clip
• 1× Cigarette Lighter Plug (bonus accessory)
• 1× User Manual
• 1× 18W Solar Panel with DC Cable & DC Alligator Clip
• 1× 30A PWM Solar Charge Controller (12V/24V)

How to Choose the Right Inverter Size

The inverter size you need depends on the total wattage of the devices you plan to run. Check each appliance's specification label for its wattage rating. We recommend choosing an inverter rated at least 10–20% above your highest expected load for safe, reliable operation.

For more information about solar energy systems and best practices, visit the U.S. Department of Energy — Solar Energy Technologies resource.

Frequently Asked Questions

Q: What devices can I power with this 4000W solar power system kit?

A: This kit is designed for powering a wide range of devices up to a continuous rated load of 300W — including smartphones, laptops, tablets, small fans, LED lighting, and other low-to-medium wattage appliances. The 4000W figure refers to the peak (surge) capacity, which handles momentary startup loads of compatible devices. Always verify each device's wattage before connecting.

Q: Is this solar kit suitable for camping and off-grid use?

A: Yes! The compact and lightweight design of the solar panel, inverter, and charge controller makes this kit an excellent choice for camping, RV trips, remote worksites, or as a backup power source at home. The 30A charge controller supports both 12V and 24V battery systems, giving you flexibility for various off-grid setups.

Q: Does the charge controller work with my existing battery bank?

A: The 30A PWM charge controller automatically detects 12V or 24V battery banks and adjusts accordingly. Key parameters such as float charge voltage (default 13.7V), discharge stop voltage (default 10.7V), and discharge reconnect voltage (default 12.6V) are all user-adjustable, making it compatible with most standard lead-acid and AGM battery banks.

Q: What does the Modified Sine Wave output mean for my appliances?

A: Modified sine wave inverters work well with most common electronics and resistive loads such as lights, phone chargers, laptops, and small appliances. Some sensitive equipment (certain medical devices, variable-speed motor tools) may work better with a pure sine wave inverter. Check your device's compatibility before use if you are unsure.