BLUETTI SolarX 4K Ultra Fast MPPT Solar Charging Controller for Apex 300

Free shipping to the 48 states. We also ship to PR, HI, AK, VI, Guam, and Saipan — message us for a quote.   If you don’t see the power station brand or model you need, message us. We can often create a private listing for you at a great price! Warranty Information Full factory warranty applies to all customers, including island locations.  The only exception is warranty shipping to and from island locations, which is not included. We offer a low‑cost 5‑year Replacement Shipping Protection plan that covers those shipping costs. SKU: SolarX 4K Description The Bluetti SolarX 4K delivers up to 4,200W of solar input for ultra‑fast charging. Compatible with Apex 300, B300, B300K, B300S, AC300, and AC500 systems. Supports solar panels from 150V to 500V with safe step‑down below 60V. Advanced MPPT technology ensures maximum efficiency and device protection. Provides reliable 4,000W output with stable voltage and current control. Connectivity options include CAN 2.0, Bluetooth, and Wi‑Fi. Compact design with IP21 protection and low 52 dB noise level. Ideal for off‑grid, backup, and renewable energy applications. Lightweight 16.8 lbs build with durable construction. Covered by a 2‑year manufacturer warranty. KEY BENEFITS Ultra‑fast solar charging up to 4,200W Wide voltage support from 150V to 500V Safe step‑down below 60V for worry‑free use Reliable MPPT technology with 99% efficiency Compatible with multiple Bluetti power stations Product Overview The Bluetti SolarX 4K is a high‑performance solar charging module designed to maximize renewable energy usage. With advanced MPPT control, wide voltage compatibility, and robust safety features, it ensures efficient and reliable charging for Bluetti power stations. Features 4,200W maximum solar input 4,000W stable output power MPPT efficiency up to 99% Supports 150V–500V solar panels Safe voltage step‑down below 60V RJ45 communication interface CAN 2.0, Bluetooth, Wi‑Fi connectivity IP21 protection grade Overtemperature protection at 55°C Compact 288.4 × 474 × 90.2 mm design Ideal Applications Off‑grid living Home backup systems RV and camper setups Outdoor events Emergency power supply Remote construction sites Renewable energy projects Disaster relief operations Sustainable farming setups Industrial backup solutions Technical Specifications Max Input Power: 4,200W Open Circuit Voltage: 500VDC Startup Voltage: 150VDC MPPT Operating Voltage: 120–450VDC Rated Input Current: 13A Max Input Current: 17A Output Power: 4,000W Output Voltage: 35–58V Max Output Current: 80A Noise: 52 dB Dimensions: 288.4 × 474 × 90.2 mm Weight: 7.6 kg (16.8 lbs) What’s in the Box Bluetti SolarX 4K Module User Manual Warranty 2 Years Manufacturer Warranty Final Verdict The Bluetti SolarX 4K is a powerful, efficient, and reliable solar charging solution for anyone seeking fast, safe, and versatile renewable energy integration with Bluetti systems.