LEESKY 4000W Pure Sine Wave Inverter — 12V to 110/120V, 7000W Surge, LiFePO4 Compatible

LEESKY 4000W Pure Sine Wave Inverter

Designed for independence wherever you rely on battery power, the LEESKY inverter converts 12V DC from your battery bank into reliable 110V-120V AC. It’s built for real-life use—whether you’re off-grid in a remote cabin, cruising in an RV, or backing up a stormy home outage.

The unit is engineered with a generous 7000W peak surge that sustains for 2 seconds, helping heavy-duty appliances start smoothly. Pair that with a robust 4000W continuous output, and you have a capable source of power for everyday essentials and mid-size devices without abrupt shutdowns or power sag.

Clean power for sensitive gear

The true pure sine wave output closely mirrors utility grid energy. That means electronics like laptops, cameras, drones, and audio systems benefit from stable voltage with minimal electrical noise, reducing hiccups and wear over time.

Smart compatibility and easy setup

Optimized for Lithium and LiFePO4 battery banks, the inverter delivers stable 12V conversion and makes efficient use of your solar or stored energy. It also supports traditional Lead-Acid and AGM batteries, offering flexibility as your system evolves.

Real-world use cases

Ideal for RVs and campers seeking quiet, dependable in-vehicle power, off-grid solar installations keeping lights and devices running, or a practical home backup during outages. A 30-foot wired remote lets you monitor input, output, and battery status from a comfortable distance, while the built-in LCD keeps information visible at a glance.

Key benefits at a glance

• 7000W peak surge for 2 seconds enables safe starts of heavy loads
• 4000W continuous pure sine power with low distortion
• LiFePO4 and Lead-Acid compatibility for flexible battery choices
• Remote monitoring from up to 30 feet with automatic screen-off for quiet sleeping spaces

Durability, safety, and reliability

The rugged aluminum alloy housing supports heat dissipation and impact resistance, while certified components add extra peace of mind. Eight safety protections guard against shorts, overload, and voltage swings, and low-output voltage protection adds stability in lean-energy scenarios. The unit carries ETL-listed transformers, UL458-certified fuses, and FCC-compliant interference controls for safer operation.

What you get and support

Beyond the 4000W inverter, you receive a 30-foot remote controller, a user manual, four pairs of battery cables, and an 18-month warranty. LEESKY backs the product with real-person support around the clock to help with setup and questions.

Bottom line

This inverter offers a balanced mix of high surge capacity, efficient continuous power, and practical usability for off-grid living, mobile power, and emergency backup. It presents options rather than promises, empowering you to design power scenarios that fit your needs.