LONGi Solar — China

Hi-MO X 430W B Silver

The LONGi Solar Hi-MO X 430W B Silver is a 430W PERC solar panel with 20.6% efficiency. Backed by a 25-year warranty.

Standard TierFEOC: Restricted

430W

Wattage

20.6%

Efficiency

PERC

Cell Type

25 years

Warranty

Full Specifications

Brand
LONGi Solar
Model
Hi-MO X 430W B Silver
Series
Hi-MO X
Wattage
430W
Module Efficiency
20.6%
Cell Type
PERC
Dimensions
66-80" x 39-41"
Weight
49 lbs
Warranty
25 years
Est. Price Per Watt
$2.25
Est. 7kW System Cost
$15,750
Est. 10kW System Cost
$22,500
Temperature Coefficient
-0.35%/°C
Bifacial
No
Origin
China
FEOC Status
fail

Other LONGi Solar Panels

ModelWattageEfficiencyCell$/W
Hi-MO 480W D480W22.1%N-Type TOPCon$2.67
Hi-MO X 480W D480W22.1%N-Type TOPCon$2.67
Hi-MO 5 480W D480W22.1%N-Type TOPCon$2.67
Hi-MO 6 480W D480W22.1%N-Type TOPCon$2.67
Hi-MO 7 480W D480W22.1%N-Type TOPCon$2.67

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
Maxeon Maxeon 3 455W E Pro455W23.5%$4.72
Maxeon Maxeon 6 455W E Pro455W23.5%$4.72
Maxeon Maxeon 7 455W E Pro455W23.5%$4.72
Maxeon Maxeon Air 455W E Pro455W23.5%$4.72

Frequently Asked Questions

How much does a 430W LONGi Solar Hi-MO X 430W B Silver cost?
The LONGi Solar Hi-MO X 430W B Silver costs approximately $968 per panel ($$2.25/W). A typical 7kW system using this panel would cost around $15,750 before incentives.

⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.

Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →

Is the LONGi Solar Hi-MO X 430W B Silver a good solar panel?
The LONGi Solar Hi-MO X 430W B Silver has 20.6% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many LONGi Solar Hi-MO X 430W B Silver panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

  • 10+ years analyzing residential solar economics and payback modeling
  • Lead researcher for EnergyTools' 50-state solar cost-per-watt database
  • Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.