Illustration · 108 cells

Solar panelCanadian Solar

Canadian Solar CS6R-395MS-HL {Blk}

Name: Canadian Solar CS6R-395MS-HL {Blk}
Brand: Canadian Solar

108 cells, PERC. Power classes 380–420 W in the CEC list; datasheet covers 380–405 W.

CEC listed · Aug 1, 2022UL 61730PVEL Top Performer 2024PERCInstalled in 46 SoCal permits

Power class

Power (STC)395 Wtolerance +10 / −0 W
Efficiency≥20.2%datasheet minimum
%/°C Pmax−0.34CEC test: −0.328
Degradation / yr0.55%after year 1 (warranty)

Power classes

CEC PV Module List (Oct 7, 2026) · Canadian Solar datasheet · Cali-Graf calculation · 14 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
CS6R-380MS-HL {Blk}	380 W	36.00	13.55	30.00	12.69	≥19.5%	357 W	Aug 1, 2022
CS6R-385MS-HL {Blk}	385 W	36.20	13.63	30.20	12.77	≥19.7%	362 W	Aug 1, 2022
CS6R-390MS-HL {Blk}	390 W	36.40	13.70	30.40	12.84	≥20.0%	367 W	Aug 1, 2022
CS6R-390MS-HL {Wht}	390 W	36.40	13.70	30.40	12.84	≥20.0%	367 W	Aug 1, 2022
CS6R-395MS-HL {Blk}	395 W	36.60	13.77	30.60	12.91	≥20.2%	372 W	Aug 1, 2022
CS6R-395MS-HL {Wht}	395 W	36.60	13.77	30.60	12.91	≥20.2%	372 W	Aug 1, 2022
CS6R-400MS-HL {Blk}	400 W	36.80	13.85	30.80	12.99	≥20.5%	377 W	Aug 1, 2022
CS6R-400MS-HL {Wht}	400 W	36.80	13.85	30.80	12.99	≥20.5%	377 W	Aug 1, 2022
CS6R-405MS-HL {Blk}	405 W	37.00	13.93	31.00	13.07	≥20.7%	382 W	Aug 1, 2022
CS6R-405MS-HL {Wht}	405 W	37.00	13.93	31.00	13.07	≥20.7%	382 W	Aug 1, 2022
CS6R-410MS-HL {Blk}	410 W	37.20	14.01	31.20	13.15	≈21.0%	386 W	Aug 1, 2022
CS6R-410MS-HL {Wht}	410 W	37.20	14.01	31.20	13.15	≈21.0%	386 W	Aug 1, 2022
CS6R-415MS-HL {Wht}	415 W	37.40	14.09	31.40	13.23	≈21.3%	391 W	Aug 1, 2022
CS6R-420MS-HL {Wht}	420 W	37.60	14.17	31.60	13.31	≈21.5%	396 W	Aug 1, 2022

≈ efficiency = Pmax ÷ CEC-listed area 1.95 m² for classes outside the datasheet.

Build & dimensions

CEC PV Module List (Oct 7, 2026) · Canadian Solar datasheets

Module area1.95 m² (21 ft²)CEC-listed area
Weight49.4 lb (22.4 kg)
Cells108 cellsPERC
Front glasslective coating
Back coverBlack backsheet
FrameAnodized aluminium alloy
Junction boxIP68, 3 bypass diodes
Cable / connector4 mm2 (IEC), 12 AWG (UL) · T6, MC4, MC4-EVO2 or MC4-EVO2A

Heat & cold behaviour

Canadian Solar datasheet · CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation

	Datasheet	CEC listing test
Pmax coefficient γ	−0.34 %/°C	−0.328 %/°C
Voc coefficient β	−0.26 %/°C	−0.261 %/°C
Isc coefficient α	+0.05 %/°C	+0.060 %/°C
Vmp coefficient	≈ −0.39 %/°C	—
Operating cell temperature	NMOT 42 ± 3 °C	NOCT 43.6 °C

Vmp coefficient ≈ γ − α (datasheet); used only for the hot-roof voltage estimate.

At normal operating conditions (NMOT, 800 W/m²) — datasheet

Class	Pmax, W	Voc, V	Isc, A	Vmp, V	Imp, A
380 W	284.0	33.90	10.91	28.10	10.12
385 W	288.0	34.10	10.98	28.30	10.19
390 W	291.0	34.20	11.05	28.40	10.26
390 W	291.0	34.20	11.05	28.40	10.26
395 W	295.0	34.40	11.11	28.60	10.33
395 W	295.0	34.40	11.11	28.60	10.33
400 W	299.0	34.60	11.17	28.80	10.39
400 W	299.0	34.60	11.17	28.80	10.39
405 W	303.0	34.70	11.23	29.00	10.45
405 W	303.0	34.70	11.23	29.00	10.45

Away from lab conditions — CEC listing test points

Class	Pmax at NOCT	Vmp × Imp at NOCT	Pmax at 200 W/m²	Low-light efficiency vs STC
380 W	288 W	28.73 V × 10.03 A	74.4 W	98%
385 W	291.7 W	28.92 V × 10.09 A	75.4 W	98%
390 W	295.3 W	29.11 V × 10.14 A	76.3 W	98%
390 W	295.7 W	28.7 V × 10.3 A	75.7 W	97%
395 W	298.8 W	29.3 V × 10.2 A	77.2 W	98%
395 W	299.2 W	28.89 V × 10.36 A	76.6 W	97%
400 W	302.7 W	29.49 V × 10.26 A	78.2 W	98%
400 W	303.1 W	29.08 V × 10.42 A	77.6 W	97%
405 W	306.5 W	29.68 V × 10.33 A	79.2 W	98%
405 W	306.9 W	29.27 V × 10.49 A	78.6 W	97%
410 W	310.4 W	29.87 V × 10.39 A	80.2 W	98%
410 W	310.8 W	29.46 V × 10.55 A	79.6 W	97%
415 W	314.7 W	29.65 V × 10.61 A	80.6 W	97%
420 W	318.6 W	29.84 V × 10.68 A	81.6 W	97%

Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Electrical & strength ratings

Max system voltage1,500 V
Max series fuse25 A
Fire rating (UL 61730)Class C
Module temperature−40 °F to +185 °F−40 °C to +85 °C
Power tolerance+10 / −0 W

Certifications

CEC PV Module List (Oct 7, 2026) · Canadian Solar datasheets

UL 61730IEC 61215IEC 61730IEC 61701IEC 62716Fire rating Class C (UL 61730)ISO 14001ISO 45001ISO 9001

UL 61730CEC listing
IEC 61215datasheet
IEC 61730datasheet
IEC 61701datasheet
IEC 62716datasheet
Fire rating Class C (UL 61730)datasheet
ISO 14001factory, datasheet
ISO 45001factory, datasheet
ISO 9001factory, datasheet

Warranty & degradation

Canadian Solar datasheet

Product warranty25 years
Year 1≥ 98%
Then≤ 0.55% / year

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index

2024

PVEL Top Performer

this series

Tests passed as Top Performer

HSS, LID+LETID, MSS

PVEL Scorecards

Canadian Solar named Top Performer, 2020–2026

RETC PV Module Index

Canadian Solar, 2025

PVEL Top Performer tests

Year	Product	Tests
2024	CS6R-xxxMS-HL	HSSLID+LETIDMSS
2024	CS6R-xxxMS (closely related product name)	LID+LETID

Tested bill of materials

PVEL-tested factoryChina,Thailand
Cell technology (tested BOM)p-type PERC
Module design (tested BOM)monofacial - glass//backsheet
Power class range tested380-425W
Hail test ice ball40 mm

Details describe the tested sample, not every module of the series.

RETC PV Module Index — Canadian Solar

Year	Recognition
2025	Reliability High Achiever

Inverter compatibility & string sizing

Canadian Solar datasheet · Cali-Graf calculation · NLR PVWatts v8 · CEC PV Module List (Oct 7, 2026) · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)

CityColdest air, °CHottest cell, °CString inverter

38.8 V

Voc when cold

per panel

24.8 V

Vmp when hot

per panel

Max panels / string

max DC 600 V

Min panels / string

MPPT from 60 V

Defaults come from NLR TMY weather (coldest hour, hottest modeled cell). Code calculations (NEC 690.7) use the ASHRAE extreme annual minimum, which is usually colder — enter it above.

String inverters most named in SoCal permits

Inverter	Max DC input	MPPT	Window source	Panels per string
Tesla 1538000-xx-y	600 V	60–480 V	datasheet	3–15
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	4–15
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	5–15
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	10–12

Microinverters (one per panel)

Microinverter	Recommended module power	Max DC input	MPPT	Voc cold / Vmp hot	Check	DC/AC
Enphase IQ8PLUS-72-2-US	235–440 W	60 V	29–45 V	38.8 / 24.8 V	⚠ Works; below MPPT at peak heat	1.36
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	38.8 / 24.8 V	✗ Not a match: module voltage below MPPT range	1.04
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	38.8 / 24.8 V	⚠ Works; below MPPT at peak heat	0.51
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	38.8 / 24.8 V	⚠ Works; below MPPT at peak heat	1.22
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	38.8 / 24.8 V	✗ Not a match: module voltage below MPPT range	1.13

Voltage check against the microinverter datasheets — confirm the pairing on the manufacturer’s module compatibility list. Rows appear only when the panel’s power is inside the microinverter’s recommended module power range.

SolarEdge and other optimizer-based systems size strings by the optimizer rules — use the manufacturer’s designer. Reference inverters: most named in SoCal permits since Oct 2024.

Expected production in Southern California

NLR PVWatts v8 · Cali-Graf calculation

PanelsCity for chartSystem size

City	kWh / kW / yr	kWh / panel / yr	kWh / system / yr	Sun, kWh/m²/day
Los Angeles	1,676	662	11,916	6.08
Palmdale	1,835	725	13,047	6.69
Chula Vista	1,696	670	12,059	6.11
Huntington Beach	1,643	649	11,682	5.89
Riverside	1,696	670	12,059	6.21
Santa Clarita	1,724	681	12,258	6.28

Estimate for comparison, not a quote: shading, roof orientation and local losses change real output. Roof mount, 20° tilt, south, 14% system losses.

Who installs CS6R-xxxMS-HL panels in SoCal

building permits · CSLB License Master

Permits naming this series

Sep 2023 – Jul 2026

Licensed installers

CSLB license on the permit

Jurisdictions so far

LA County (unincorp.) (33), Palmdale (13)

Grid Alternatives

Oakland · CSLB #867533

3 installsApr 2024Palmdale

Semper Solaris

El Cajon · CSLB #978152

2 installsSep 2023 – May 2024Palmdale

Solar Shoppers Construction

Palmdale · CSLB #1019939

2 installsMay 2025 – Feb 2026Palmdale

Preferred Energy

Apple Valley · CSLB #1124130

1 installJul 2026Palmdale

Sun & Power

Canyon Country · CSLB #1047265

1 installApr 2024Palmdale

Permits over time

Power class named in permit

395 W

390 W

400 W

Top ZIP codes

ZIP 935516
ZIP 935505
ZIP 900233
ZIP 913843
ZIP 935363
ZIP 905022
ZIP 935432
ZIP 917452
Other ZIP codes17

Typical system

median 7 kW, 19 panels (n = 31)

Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Permits from LA County (unincorp.) come without a contractor license, so they count toward totals but not toward installers. Counts grow as more permit portals are loaded.

Installed together with

building permits

Microinverters

Enphase IQ8+

Enphase IQ8A

Inverters

SolarEdge SE…H (HD-Wave)

Optimizers

SolarEdge Power Optimizer

Tigo TS4

Batteries

Tesla Powerwall 3

Enphase IQ Battery 5P

EG4 (model not specified)

Number of permits naming both this panel series and the product; 44 of 46 permits list other equipment.

Compare with similar 395 W panels

CEC PV Module List (Oct 7, 2026) · Qcells datasheet · Kiwa PVEL Scorecard · building permits

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)	SoCal permits (series)
Canadian Solar CS6R-395MS-HL {Blk}	395 W	≥20.2%	−0.328	36.6	13.77	product 2024	46
Qcells Q.PEAK DUO BLK ML-G10+ 395	395 W	≥20.1%	−0.362	45.27	11.1	product 2022, 2023	221
JA Solar JAM54S31-395/MR	395 W	≈20.8%	−0.329	36.98	13.7	product 2023, 2024	152
REC Group REC395AA Pure	395 W	≈22%	−0.256	48.7	10.2	brand 9× (2016–2025)	66

Same fields from the same sources for every row; ≈ efficiency is calculated from the listed area. Comparable series: other brands, same product group, power range covering this class.

Documents

manufacturer documents

PDF
HiKu6 (All-Black) ALL BLACK MONO PERC CS6R-380|385|390|395|400|405MS-HL
Datasheet · Canadian Solar (CSI Solar) · Apr 2024
PDF
Warranty
Warranty · Canadian Solar (CSI Solar) · Apr 2026

About Canadian Solar

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · RETC PV Module Index · building permits

ManufacturerCanadian Solar
Listed in CEC asCSI Energy Storage Co., Ltd., CSI Solar Co., Ltd., Canadian Solar
Websitecanadiansolar.com
PVEL Top Performer (manufacturer)5 Scorecards (2020–2026)
RETC PV Module Index2025
Current panel series in CEC list38

Other series by SoCal permits

CS3N-xxxMS · 46CS6.1-54TM-xxxH · 9CS1Y-xxxMS · 6CS3W-xxxMS · 6CS3W-xxxMB-AG · 5CS7N-xxxMB-AG · 2

Questions & answers

How efficient is the Canadian Solar CS6R-395MS-HL {Blk}?

The Canadian Solar datasheet guarantees at least 20.2% module efficiency for the 395 W class (up to 20.7% for 405 W). 395 W over 1.95 m² equals about 203 W per square meter.

How much energy does one panel produce in Los Angeles or Palmdale?

PVWatts v8 with typical-year weather gives about 662 kWh per year per 395 W panel in Los Angeles and about 725 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.34 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 17.6% below the STC rating.

How many panels fit on one string?

With the Tesla 1538000-xx-y (max DC 600 V, MPPT from 60 V, datasheet) in Los Angeles the calculator gives 3–15 panels per string (Voc at 2 °C = 38.8 V, Vmp at 74 °C cell = 24.8 V). Final design must follow the inverter manual and NEC 690.7.

What does the warranty cover?

25 years on the product (manufacturer datasheet).

Has this panel been reliability-tested?

CS6R-xxxMS-HL was a PVEL Top Performer in 2024 (HSS, LID+LETID, MSS).

What fire rating does it have?

UL 61730 fire rating Class C per datasheet.

Who installs it in Southern California?

Building permits name this series 46 times (Sep 2023 – Jul 2026). The most active licensed installers are Grid Alternatives, Semper Solaris, Solar Shoppers Construction.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Canadian Solar — datasheet HiKu6 (All-Black) ALL BLACK MONO PERC CS6R-380|385|390|395|400|405MS-HL.
Canadian Solar — manufacturer datasheet “HiKu6 (All-Black) ALL BLACK MONO PERC CS6R-380|385|390|395|400|405MS-HL”.
Qcells — manufacturer datasheet “Q.PEAK DUO BLK ML-G10+ ENDURING HIGH PERFORMANCE”.
Canadian Solar — document library on the manufacturer’s website (links above).
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2020–2026.
RETC — PV Module Index report.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
Inverter datasheets — APsystems (Alt Power System), Enphase, Solis (Ginlong), Tesla (manufacturer documents).
Building permits — Los Angeles County Public Works (EPIC-LA, unincorporated areas) (Oct 2023 – May 2025); City of Palmdale (Sep 2023 – Jul 2026). Equipment matched from permit descriptions by model number.
Contractors State License Board — License Master (contractor names and license status), as of Oct 5, 2026.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).