Eco Solar Kits · Sungold Power · SGM-8K20
A complete off-grid solar system — 8,000W dual-MPPT inverter, 20.48kWh of LiFePO₄ battery storage, and twelve 415W monocrystalline panels — for washers, refrigerators, and water pumps.
Welcome to the perfect destination for building your very own DIY solar system with safety and reliability in mind. Our solar kit offers everything you need to get started:
This comprehensive kit is adept at powering essential appliances like washers, refrigerators, water pumps, and more. Ideal for off-grid homes, solar systems, or emergency backup setups, our solar kit provides versatile usage options.
What sets our system apart is its flexibility. You have the freedom to extend your system in the future, adapting to your evolving needs seamlessly. If you have a small off-grid home or remote cabin, consider the Sungold Power Off‑Grid 6,000W 24VDC Solar Kit (SGK‑PRO62) for a compact, reliable solution with sustainable power and storage.
Take charge of your energy independence with our reliable and adaptable solar kit today!

Rated output with double the power available briefly, supporting motors up to 5HP.
Runs standard household circuits and larger 240V appliances from the same system.
Two solar charge trackers built directly into the inverter, supporting up to 11,000W of combined solar input at 99.9% tracking efficiency.
Fast solar charging, with up to 100A from mains/generator and 180A max hybrid charging combined.
Add more batteries and solar panels in the future as your energy needs grow.
Minimal energy loss whether running on battery, solar, or passthrough grid power.
Junction box rated for full submersion protection, backed by a 25-year linear product warranty.
182mm Grade-A monocrystalline cells for a higher conversion rate per panel.
SPH8K48SP Inverter/Charger (×1)
| Rated output power | 8,000 W |
| Max. peak power | 16,000 W |
| Rated output voltage | 120/240Vac split-phase |
| Load capacity of motors | 5 HP |
| Waveform | Pure sine wave |
| Switch time | 10ms (typical) |
| Compatible types | Li-ion / Lead-acid / User-defined |
| Rated battery voltage | 48 Vdc |
| Voltage range | 40–60 Vdc |
| Max. MPPT charging current | 200 A |
| Max. mains/generator charging | 100 A |
| Max. hybrid charging | 180 A |
| No. of MPPT trackers | 2 |
| Max. PV array power | 11,000 W |
| Max. input current | 22A / 22A |
| Max. open circuit voltage | 500 Vdc |
| MPPT voltage range | 125–425 Vdc |
| MPPT tracking efficiency | 99.9% |
| Max. battery inverter efficiency | 92% |
| Weight | 59 lbs (24.5 kg) |
| Dimensions | 620 × 445 × 130 mm |
| Protection rating | IP20, indoor only |
| Operating temp | -10°C to 55°C (>45°C derated) |
| Noise | <60 dB |
| Safety | IEC62109-1, IEC62109-2, UL1741 |
| EMC | EN61000-6-1, EN61000-6-3, FCC15 Class B |
| Communication | RS485 / CAN / USB / Dry contact; WiFi/GPRS optional |
| Warranty | 1 year |
100AH 51.2V Battery (×4)
| Rated capacity | 100 Ah |
| Nominal voltage | 51.2 V |
| Energy per unit | 5,120 Wh |
| Combined (4 units) | 20,480 Wh (20.48 kWh) |
| Standard current | 50 A |
| Max. continuous current | 100 A |
| Cycle life | ≥7,000 @ 80% DOD |
| Design life | 15 years |
| Weight (each) | ~95 lbs (43 kg) |
| Dimensions | 16.5 × 22.8 × 5.5 in |
| Protection rating | IP20 (battery box) |
| Charging temp | 32–113°F |
| Discharging temp | -4–140°F |
| Max parallel | 63 batteries |
| Communication | RS232 / RS485 / CAN |
SG-415WM Monocrystalline Panel (×12)
| Max. power | 415 W |
| Max-power voltage | 31.61 V |
| Max-power current | 13.13 A |
| Open-circuit voltage | 38.82 V |
| Module efficiency | 21.25% |
| Cell type | Mono 182×91mm (108 cells) |
| Weight (each) | 45.1 lbs (20.45 kg) |
| Dimensions | 67.9 × 44.7 × 1.4 in |
| Junction box | IP68 |
| Warranty | 25yr linear product + 10yr workmanship |
Adept at powering essential appliances like washers, refrigerators, water pumps, and more — ideal for off-grid homes, solar systems, or emergency backup setups, per the manufacturer's own description.

Yes — two MPPT trackers are built directly into the inverter, supporting up to 11,000W of solar input at 99.9% tracking efficiency.
20.48kWh combined from four 5,120Wh LiFePO₄ batteries, each rated for at least 7,000 cycles to 80% depth of discharge.
Yes — the manufacturer also offers a smaller 6,000W 24VDC kit for small off-grid homes or remote cabins.
Yes — this system is easily expandable, letting you add more batteries and solar panels as your energy needs grow, per the manufacturer's own product description.
Given the scale of this system — an 8,000W inverter and a 20.48kWh battery bank — installation should be handled by a qualified, licensed electrician familiar with your local code.
Upon completing your order, you will promptly receive an email confirming the order placement, indicating that we have received your order and pre-authorized your credit card for the purchase. Our next step is to contact our suppliers to confirm the item's availability and readiness for shipment. Should the item be on backorder or unavailable, we will notify you of the estimated lead time. If the provided lead time is unsatisfactory, we will cancel the pre-authorization and contact you via email or phone. If the item can be shipped within 5 business days, we will proceed with processing the charges and shipping your order.
In the event of incorrect shipping information provided at checkout, we will make every effort to track down the item using our shipping partners. Please be aware that refunds and returns are not available in such cases. However, we will do our utmost to locate the item. If successful, re-shipping fees of up to 20% of the item's value may apply.
If your order is in stock and we have successfully processed your credit card charges, the items will be shipped within five business days from the order date. You will receive tracking information via email within 24 hours of your order leaving the distribution center. Should tracking information not be received within six days of your order, please contact us at +1 (307) 317-7213. The cut off time is 4 pm EST.
We offer free shipping on all orders and applicable items and brands within the mainland of the US (Hawaii, Alaska, and Overseas Territories are exclusions).
Eco Solar Kits does not ship orders directly to Hawaii, Alaska, or Overseas Territories. Clients needing delivery to these locations must arrange a freight forwarder and enter the forwarder’s address as the shipping address. Eco Solar Kits will then ship the order to the designated freight forwarder under our standard shipping terms.
Typically, orders are processed immediately upon receipt, taking approximately 1-4 business days after order confirmation, payment, and pick-up time to fulfill.
The delivery time via freight carrier may vary between 4-6 business days, depending on your location.
To prevent delays, frustration, and additional costs, kindly inform us of any concerns regarding the delivery to your location. It's important to note that the following situations may incur additional costs:
You can reach us using the contact methods provided below:
At D&D Eco Power Goods LLC, we strive to ensure our customers are completely satisfied with their purchases. Our return and refund policies are designed to provide a fair and transparent process based on the delivery date of your item.
You have 30 days from the delivery date to initiate a return. To be eligible for a return, the item must meet the following conditions:
Items that do not meet these conditions will not be accepted for return.
To begin the return process, please follow these steps:
We prioritize customer satisfaction and aim to provide a seamless refund experience. This refund policy is based on the delivery date of your item to ensure fairness in the return process.
Refunds will be processed based on the delivery date of the returned product. Once the manufacturer receives and inspects your returned item, we will notify you regarding the approval or rejection of your refund. If approved, the refund will be processed through your original payment method, typically within 10 days. Please note that it may take some time for your bank or credit card company to process and post the refund.
For any questions or concerns regarding our return or refund policy, please do not hesitate to contact us: