---
title: "LS Solar 400 W 400W Solar Panel - Specs & Review | ComparePV"
description: "LS Solar 400 W 400W solar panel. Specs: Monocrystalline cells, dimensions, warranty and temperature coefficient."
source: "https://comparepv.com/panel/ls-solar-400-w"
updated: 2026-09-11
---

# LS Solar 400 W

Middle of its segment, weak in heat

6,519 panels in the 300-500 W band, all technologies


## Identity

- **Manufacturer:** LS Solar
- **Model:** 400 W
- **Rated power:** 400 W
- **Cell technology:** Monocrystalline


## How it compares

Compared against 300-500 W band, all technologies (6519 panels).


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Power (Wp) | 400 W | 435 W | Weak - bottom 24% |  |
| Module efficiency | - | 21.30% |  |  |
| Power density | 204.8 | 212.6 | Typical | 11,370 |
| Temperature coefficient | -0.370 | -0.300 | Weak - bottom 6% | 13,081 |
| Weight (kg) | 21.4 kg | 22.5 kg | Typical |  |
| Performance warranty | - | 30 yrs |  |  |


### Full peer table


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Module efficiency | - | 21.30% |  |  |
| Power density | 204.8 | 212.6 | Typical | 11,370 |
| Temperature coefficient | -0.370 | -0.300 | Weak - bottom 6% | 13,081 |
| Weight per kWp | 53.6 | 53.2 | Typical | 7,640 |
| Performance warranty | - | 30 yrs |  |  |


### Watch out for

- **-0.370 %/°C temperature coefficient** - Bottom 6% of the 300-500 W band, against a median of -0.300. Ranked 13,081st in the whole database.

- **Not ideal for:** Hot climates.


## Specification


### Electrical

- **Rated power (Pmax):** 400 W
- **Voltage at Pmax (Vmp):** 31.05 V
- **Current at Pmax (Imp):** 12.89 A
- **Open-circuit voltage (Voc):** 37.00 V
- **Short-circuit current (Isc):** 13.78 A
- **Max system voltage:** 1500 V


### Temperature

- **Temperature coefficient of Pmax:** -0.370 %/degC
- **Temperature coefficient of Voc:** -0.280 %/degC
- **Temperature coefficient of Isc:** 0.048 %/degC


### Cell and construction

- **Cell type:** Monocrystalline
- **Cell count:** 108


### Physical

- **Length:** 1722 mm
- **Width:** 1134 mm
- **Thickness:** 30 mm
- **Weight:** 21.4 kg
- **Area:** 1.95 m2
- **Power density:** 204.8 Wp/m2


### Warranty and degradation


## Rank in the whole catalogue


| Measure | Position |
| --- | --- |
| Efficiency | 13999 of 14005 |
| Power density | 11370 of 14005 |
| Temperature coefficient | 13081 of 14005 |
| Weight | 7640 of 14005 |
| Warranty | 13880 of 14005 |


## Notable figures

- At 204.8 W/m², this panel generates 13.3 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²)
- Temperature coefficient of -0.37%/°C is 0.07pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat
- Weight of 21.4 kg (5.1 kg below \*\*database\*\* median of 26.5 kg) allows easier transport and roof mounting
- Ranked #13999 out of 14005 panels for efficiency in the database


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ls-400w-b7af9d19def1.pdf)


## Alternatives


| Panel | Power | How it differs |
| --- | --- | --- |
| [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | +40 W, cooler, heavier |
| [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, cooler |
| [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, cooler, heavier |
| [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, cooler, heavier |
| [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, cooler, heavier |
| [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, cooler, heavier |
| [LS Solar STC 01](https://comparepv.com/panel/ls-solar-stc-01) | 400 W | Very close match |
| [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +110 W, cooler, heavier |
| [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +95 W, cooler |
| [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +105 W, cooler, heavier |
| [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +90 W, cooler |
| [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +100 W, cooler, heavier |
| [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +100 W, cooler |


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Source: https://comparepv.com/panel/ls-solar-400-w

Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.