SolarX 4K
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
BLUETTI SolarX 4K Solar Charge ControllerSeamless Solar Compatibility, Supercharged Meet the world's first 4kW solar charge controller. The BLUETTI SolarX 4K takes 150500V from nearly any rooftop or ground array and converts it into safe, sub 60V charging for BLUETTI power stationsup to 4,000W. That means faster charging, more stored energy, and reliable power whether you're backing up your home, running an off grid cabin, or building your own solar farm. Scalable Solar Power, 4 kW to 12 kW
Seamless Solar Compatibility, Supercharged
Meet the world's first 4kW solar charge controller. The BLUETTI SolarX 4K takes 150–500V from nearly any rooftop or ground array and converts it into safe, sub-60V charging for BLUETTI power stations—up to 4,000W. That means faster charging, more stored energy, and reliable power whether you're backing up your home, running an off-grid cabin, or building your own solar farm.
Scalable Solar Power, 4 kW to 12 kW
SolarX 4K lets you decide how much solar power fits your life. Use one unit to cover daily essentials, or scale up to three for your whole home. It connects to your existing solar setup via AC coupling, keeping BLUETTI's DC input ports free for extra panels, so you get more energy, faster, without tying up your system.
Apex 300+B300K+SolarX 4K
Charge to full in just 1.9 hours with 4,000 W solar, fast enough to keep lights, small appliances, and everyday devices ready when needed.
Note: Data tested by BLUETTI Labs. Actual charging times may vary
2x Apex 300 + 4x B300K + 2x SolarX 4K
8,000 W solar delivers reliable energy for larger appliances, power tools, and extended off-grid living.
3×Apex 300 + 9×B300K + 3×SolarX 4K
Scale to 12 kW, plus 7.2 kW from extra panels for a total of 19.2 kW, enough for heavy loads like central air conditioners, refrigerators, or a full home backup.
Control Your Solar Power Anywhere, Anytime
Easily monitor your system in real-time, receive firmware updates, and troubleshoot instantly, all from the BLUETTI app, giving you complete control wherever you are.
Tech Specs
INPUT
Max. Input Power4,200 W
Open-Circuit Voltage500 VDC
Startup Voltage150 VDC
MPPT Operating Voltage120 VDC to 450 VDC
Number of MPPT1
Rated Input Current13 A
Max. Input Current17 A
OUTPUT
Output Power4,000 W
Max. Output Voltage58 V
Min. Output Voltage35 V
Max. Output Current80 A
Communication InterfaceRJ45
GENERAL
MPPT Efficiency99% Max.
ConnectivityCAN 2.0/Bluetooth/Wi-Fi
Overtemperature Protection55°C (131°F)
Operating Humidity-20°C to 55°C (-4°F to 131°F)
Operating Altitude≤ 2,000 m (6,562 ft)
Noise Level52 dB
Cooling MethodAir Cooling
Net Weight7.6 kg (16.8 lbs)
Protection GradeIP21
Dimensions (L × W × H)288.4 × 474.0 × 90.2 mm
Warranty2 Years
IN THE BOX
P090D
x 1Hex Socket Wrench
x 1Fixing Screw (ST4.8)
x 1Grounding Screw (M5)
x 1Anchor
x 1Knockout Connector
x 1OT Terminal
x 1Documents
x 1Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Good stuff
Color: Bright White Accent Light
Exactly wamhat I wanted
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Reviewed in the United States on April 18, 2026
★★★★★ 3
Bought 4 - burned out in 6 wks
I paid full price and purchased four of these; within six weeks one was inoperable and won't turn on at all. Dead. One other is barely hanging on and two are still doing okay. Given the price, I'd expect far more.
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Reviewed in the United States on July 8, 2024
★★★★★ 2
Can’t recommend with 2/6 failing in 2
Purchased 6 lights, two failed within 8 weeks photo shows dead la get on left vs functional one on right. Sadly, I have received no response or support from the company. Who knows how long the other 4 lights will last.
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Reviewed in the United States on December 13, 2025
★★★★★ 5
pricey but worth it
I just happened to check reviews on this and saw a couple negatives. I don't doubt that they have had some issue with the solar panels but that's not been my experience. I've purchased 6 over the span of a year and a half from various merchants including amazon. Gama Sonic is pricey in general, yet I've found I can rely on the quality of the brand. I have other models as well. This particular is one of my favorites because of the versatility in placement, whether staked in the ground or in a pipe or fence for a higher mount. The hook is solid as is the stake itself. The brightness is great as long as you understand what you're getting in lumens and it meets the specs for your purpose. My first 2 have now passed the 2 year mark and going strong. Of course, there's not much sun during the Jersey winter so they don't have the juice to last long but for 8-9 months of the year they burn all night. I anticipate having to replace the battery next season at some point. 3 year life is fine for me. Bulb is supposed to last 10 years. Not sure I'll be around to update. I also appreciate that if you have slim enough hands, you can access the on off switch from underneath for those times you don't want it or wish to change the brightness. The solar panel design is also very functional with a somewhat stylish look. Personal taste on that one I guess but it does soak up the rays. Like I said, pleased enough to go back twice more.
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Reviewed in the United States on December 22, 2021
★★★★★ 5
Quick replacement for defective one
I really love these lights; they consistently stay on all night on most nights given that I live in a state with lots of cloudy days and it is winter. That is a huge plus. I did have one that was defective and I received a replacement very quickly and was able to charge it up in the sun and it works very well. In some of them I have noticed condensation (in ones that I purchased about 6 months ago) but for now they work flawlessly. You really need to be aware of the level of sunlight to use solar lights effectively and for those areas that there isn't enough you need to accept the limitations or install low voltage lights for supplemental light in those areas. These are my favorite and most reliable solar path lights and I will continue to buy more of them. Amazon readily accepted by return and from my return to new light was only a couple of days, which I found was impressive and appreciated!
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Reviewed in the United States on March 16, 2023