44.6″ · 1,134 mm wide · 1.18″ (30 mm) frame · 48.5 lb (22 kg)

Solar panelPhono Solar

Phono Solar PS400M6H-18/VHB

Name: Phono Solar PS400M6H-18/VHB
Brand: Phono Solar

108 half-cut cells, PERC. Power classes 390–410 W in the CEC list.

CEC listed · Aug 11, 2022UL 6173025-yr product + 25-yr performance warrantyPERCSeen in 2 SoCal permits

Power class

Power (STC)400 WCEC nameplate
Efficiency≥20.5%datasheet minimum
%/°C Pmax−0.353CEC listing test
Degradation / yr0.55%after year 1 (warranty)

Power classes

CEC PV Module List (Oct 7, 2026) · Phono Solar datasheet · 5 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
PS390M6H-18/VHB	390 W	36.48	13.32	30.50	12.79	≥20.0%	364 W	Aug 11, 2022
PS395M6H-18/VHB	395 W	36.67	13.42	30.67	12.88	≥20.2%	369 W	Aug 11, 2022
PS400M6H-18/VHB	400 W	37.04	13.79	31.01	12.90	≥20.5%	375 W	Aug 11, 2022
PS405M6H-18/VHB	405 W	37.23	13.87	31.21	12.98	≥20.7%	380 W	Aug 11, 2022
PS410M6H-18/VHB	410 W	37.32	13.95	31.45	13.04	≥21.0%	384 W	Sep 23, 2024

Build & dimensions

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

Dimensions67.8 × 44.6 × 1.18 in1,722 × 1,134 × 30 mm
Module area1.95 m² (21 ft²)length × width
Weight48.5 lb (22 kg)
Cells108 half-cut cellsPERC
Front glass3.2mm Toughened Glass
Back coverBlack backsheet
FrameAnodized Aluminium Alloy
Junction boxIP 68 Rated
Cable / connector4mm² (IEC), 1100mm (43.31inch)

Heat & cold behaviour

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

	Datasheet	CEC listing test
Pmax coefficient γ	—	−0.353 %/°C
Voc coefficient β	—	−0.272 %/°C
Isc coefficient α	—	+0.054 %/°C
Vmp coefficient	≈ −0.41 %/°C	—
Operating cell temperature	NMOT 45 ± 2 °C	NOCT 43.6 °C

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

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

Class	Pmax, W	Voc, V	Isc, A	Vmp, V	Imp, A
390 W	290.0	34.44	10.76	28.08	10.33
395 W	294.0	34.62	10.84	28.24	10.41
400 W	298.0	34.81	10.92	28.40	10.48
405 W	301.0	34.98	11.00	28.55	10.55
410 W	305.0	35.15	11.09	28.71	10.63

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
390 W	292.6 W	28.78 V × 10.17 A	75.6 W	97%
395 W	296.3 W	28.94 V × 10.24 A	76.5 W	97%
400 W	295.2 W	28.36 V × 10.41 A	77.3 W	97%
405 W	299 W	28.54 V × 10.48 A	78.3 W	97%
410 W	302.7 W	28.76 V × 10.52 A	79.3 W	97%

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

Electrical & strength ratings

Phono Solar datasheet

Max system voltage1,500 V
Max series fuse25 A
Fire rating (UL 61730)Type 1
Module temperature−40 °F to +185 °F−40 °C to +85 °C

Packaging: 11 per pallet · 216 per container

Certifications

CEC PV Module List (Oct 7, 2026) · Phono Solar datasheet

UL 61730IEC 61215IEC 61730Fire rating Type 1 (UL 61730)ISO 14001ISO 45001ISO 9001

UL 61730CEC listing
IEC 61215datasheet
IEC 61730datasheet
Fire rating Type 1 (UL 61730)datasheet
ISO 14001factory, datasheet
ISO 45001factory, datasheet
ISO 9001factory, datasheet

Warranty & degradation

Phono Solar datasheet

Product warranty25 years
Performance warranty25 years, linear
Then≤ 0.55% / year

Independent reliability testing

Kiwa PVEL Scorecard

PVEL Scorecards

Phono Solar named Top Performer, 2016–2026

This exact series is not listed in published PVEL Top Performer tables. Results below are for the manufacturer.

Inverter compatibility & string sizing

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

CityColdest air, °CHottest cell, °CString inverter

39.4 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. β is the CEC-measured coefficient; NEC 690.7 calculations use the datasheet value.

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	39.4 / 24.8 V	⚠ Works; below MPPT at peak heat	1.38
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	39.4 / 24.8 V	✗ Not a match: module voltage below MPPT range	1.05
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	39.4 / 24.8 V	⚠ Works; below MPPT at peak heat	0.51
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	39.4 / 24.8 V	⚠ Works; below MPPT at peak heat	1.23
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	39.4 / 24.8 V	✗ Not a match: module voltage below MPPT range	1.15

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	670	12,067	6.08
Palmdale	1,835	734	13,212	6.69
Chula Vista	1,696	678	12,211	6.11
Huntington Beach	1,643	657	11,830	5.89
Riverside	1,696	678	12,211	6.21
Santa Clarita	1,724	690	12,413	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.

Compare with similar 400 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)
Phono Solar PS400M6H-18/VHB	400 W	≥20.5%	−0.353	37.04	13.79	brand 9×	2
Qcells Q.PEAK DUO BLK ML-G10+ 400	400 W	≥20.4%	−0.362	45.3	11.14	product 2022, 2023	221
JA Solar JAM54S31-400/MR	400 W	≈21.1%	−0.329	37.07	13.79	product 2023, 2024	152
REC Group REC400AA Pure	400 W	≈22.3%	−0.256	48.8	10.25	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.

About Phono Solar

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

ManufacturerPhono Solar
Listed in CEC asPhono Solar Technology Co., Ltd.
Websitephonosolar.com
PVEL Top Performer (manufacturer)9 Scorecards (2016–2026)
Current panel series in CEC list36

Other series by SoCal permits

PSxxxM13GFH-22/WNH · 1PSxxxM8GFH-24/TNH · 1PSxxxM4H-24/TH · 1PSxxxL8GFH-16/QNHPSxxxL8GFH-16/QNHBPSxxxL8GFH-22/WNH

Questions & answers

How efficient is the Phono Solar PS400M6H-18/VHB?

The Phono Solar datasheet guarantees at least 20.5% module efficiency for the 400 W class (up to 21% for 410 W). 400 W over 1.95 m² equals about 205 W per square meter.

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

PVWatts v8 with typical-year weather gives about 670 kWh per year per 400 W panel in Los Angeles and about 734 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.353 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 18.3% 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 = 39.4 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 and 25 years linear on performance (manufacturer datasheet).

How big and heavy is it?

67.8 × 44.6 × 1.18 in (1,722 × 1,134 × 30 mm), 48.5 lb (22 kg).

Has this panel been reliability-tested?

This exact series is not in published PVEL Top Performer tables; Phono Solar was named a Top Performer in 9 Scorecards (2016–2026).

What fire rating does it have?

UL 61730 fire rating Type 1 per datasheet.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Phono Solar — manufacturer datasheet “MODULE SERIES HIGH EFFICIENCY MONO-PERC M6-10B-B OUTSTANDING PRODUCT PERFORMANCE”.
Qcells — manufacturer datasheet “Q.PEAK DUO BLK ML-G10+ ENDURING HIGH PERFORMANCE”.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2016–2026.
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) (Mar 2024 – Apr 2024). Equipment matched from permit descriptions by model number.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).