44.6″ · 1,134 mm wide · 1.18″ (30 mm) frame · 55.6 lb (25.2 kg)

Solar panelHyperion Solar

Hyperion Solar HY-DH108P8-405-B

Name: Hyperion Solar HY-DH108P8-405-B
Brand: Hyperion Solar

108 half-cut cells, PERC, bifacial, 2.0mm ( 0.079in.) semi-tempered glass. Power classes 390–415 W in the CEC list; datasheet covers 390–410 W.

CEC listed · Feb 1, 2022UL 61730Bifacial · 70 ± 10%PERCMADE IN THAILANDInstalled in 3 SoCal permits

Power class

Power (STC)405 WCEC nameplate
Efficiency≥20.7%datasheet minimum
%/°C Pmax−0.35CEC test: −0.396
PTC / STC93%PTC 376 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Hyperion Solar datasheet · Cali-Graf calculation · 6 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
HY-DH108P8-390-B	390 W	36.85	13.61	30.64	12.73	≥20.0%	362 W	Feb 1, 2022
HY-DH108P8-395-B	395 W	36.98	13.70	30.84	12.81	≥20.2%	367 W	Feb 1, 2022
HY-DH108P8-400-B	400 W	37.07	13.79	31.01	12.90	≥20.5%	372 W	Feb 1, 2022
HY-DH108P8-405-B	405 W	37.23	13.87	31.21	12.98	≥20.7%	376 W	Feb 1, 2022
HY-DH108P8-410-B	410 W	37.32	13.95	31.45	13.04	≥21.0%	381 W	Feb 1, 2022
HY-DH108P8-415-B	415 W	37.45	14.02	31.61	13.13	≈21.3%	386 W	Feb 1, 2022

≈ efficiency = Pmax ÷ panel area 1.953 m² (datasheet size) for classes outside the datasheet.

Build & dimensions

Hyperion 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
Weight55.6 lb (25.2 kg)
Cells108 half-cut cellsPERC
Front glass2.0mm ( 0.079in.) semi-tempered AR glass
Back cover2.0mm ( 0.079in.) semi-tempered glass
FrameBlack frame
Junction boxIP68 rated (3 bypass diodes)
Cable / connector4mm² (IEC),12 AWG(UL) · EVO2 or customized
Made inMADE IN THAILAND

Heat & cold behaviour

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

	Datasheet	CEC listing test
Pmax coefficient γ	−0.35 %/°C	−0.396 %/°C
Voc coefficient β	−0.27 %/°C	−0.307 %/°C
Isc coefficient α	+0.05 %/°C	+0.056 %/°C
Vmp coefficient	≈ −0.40 %/°C	—
Operating cell temperature	NMOT 42 ± 2 °C	NOCT 43.7 °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
390 W	295.0	34.95	10.98	29.15	10.15
395 W	298.8	35.07	11.05	29.25	10.22
400 W	302.5	35.15	11.13	29.41	10.29
405 W	306.4	35.31	11.19	29.60	10.35
410 W	310.2	35.39	11.25	29.82	10.40

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	276.8 W	27.4 V × 10.1 A	72.7 W	93%
395 W	280.3 W	27.58 V × 10.16 A	73.6 W	93%
400 W	283.9 W	27.73 V × 10.24 A	74.5 W	93%
405 W	287.5 W	27.91 V × 10.3 A	75.5 W	93%
410 W	291 W	28.13 V × 10.35 A	76.4 W	93%
415 W	294.5 W	28.27 V × 10.42 A	77.3 W	93%

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

Electrical & strength ratings

Hyperion Solar datasheet

Max system voltage1,500 V
Max series fuse30 A
Fire rating (UL 61730)Class A
Module temperature−40 °F to +185 °F−40 °C to +85 °C

Packaging: 36 per pallet · 792 per container

Bifacial performance

NLR SAM module library · Hyperion Solar datasheet

BifacialYes
Bifaciality70 ± 10%
Back cover2.0mm ( 0.079in.) semi-tempered glass

Rear gain depends on mounting height and ground reflectance; flush roof mounts receive little rear light.

Certifications

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

UL 61730IEC 61215IEC 61730IEC 61701IEC 62716Fire rating Class A (UL 61730)ISO 9001

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

Inverter compatibility & string sizing

Hyperion 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

39.5 V

Voc when cold

per panel

25.1 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	4–15
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	39.5 / 25.1 V	⚠ Works; below MPPT at peak heat	1.4
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	39.5 / 25.1 V	✗ Not a match: module voltage below MPPT range	1.07
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	39.5 / 25.1 V	⚠ Works; below MPPT at peak heat	0.52
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	39.5 / 25.1 V	⚠ Works; below MPPT at peak heat	1.25
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	39.5 / 25.1 V	✗ Not a match: module voltage below MPPT range	1.16

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	679	11,539	6.08
Palmdale	1,835	743	12,634	6.69
Chula Vista	1,696	687	11,677	6.11
Huntington Beach	1,643	665	11,312	5.89
Riverside	1,696	687	11,677	6.21
Santa Clarita	1,724	698	11,870	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 HY-DH108P8-xxx-B panels in SoCal

building permits · CSLB License Master

Permits naming this series

Jan 2025 – Apr 2025

Licensed installers

CSLB license on the permit

Jurisdictions so far

LA County (unincorp.) (2), Palmdale (1)

Earthbound Electric LLC

Fontana · CSLB #1110356

1 installApr 2025Palmdale

Permits over time

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+

Batteries

Enphase IQ Battery 5P

Number of permits naming both this panel series and the product; 3 of 3 permits list other equipment.

Compare with similar 405 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)
Hyperion Solar HY-DH108P8-405-B	405 W	≥20.7%	−0.396	37.23	13.87	—	3
Qcells Q.PEAK DUO BLK ML-G10+ 405	405 W	≥20.6%	−0.362	45.34	11.17	product 2022, 2023	221
JA Solar JAM54S31-405/MR	405 W	≈21.3%	−0.329	37.23	13.87	product 2023, 2024	152
REC Group REC405AA Pure	405 W	≈22.6%	−0.256	48.9	10.3	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.

Questions & answers

How efficient is the Hyperion Solar HY-DH108P8-405-B?

The Hyperion Solar datasheet guarantees at least 20.7% module efficiency for the 405 W class (up to 21% for 410 W). 405 W over 1.95 m² equals about 207 W per square meter.

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

PVWatts v8 with typical-year weather gives about 679 kWh per year per 405 W panel in Los Angeles and about 743 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.35 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 18.1% 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 = 39.5 V, Vmp at 74 °C cell = 25.1 V). Final design must follow the inverter manual and NEC 690.7.

How big and heavy is it?

67.8 × 44.6 × 1.18 in (1,722 × 1,134 × 30 mm), 55.6 lb (25.2 kg).

Is it bifacial?

Yes, bifaciality 70 ± 10%. Rear gain depends on mounting height and ground reflectance.

What fire rating does it have?

UL 61730 fire rating Class A per datasheet.

Who installs it in Southern California?

Building permits name this series 3 times (Jan 2025 – Apr 2025). The most active licensed installers are Earthbound Electric LLC.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Hyperion Solar — manufacturer datasheet “MADE IN THAILAND TITAN SOLAR POWER 525 W BASELINE RD”.
Qcells — manufacturer datasheet “Q.PEAK DUO BLK ML-G10+ ENDURING HIGH PERFORMANCE”.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists.
NLR (formerly NREL) — System Advisor Model CEC module and inverter libraries (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) (Jan 2025 – Feb 2025); City of Palmdale (Apr 2025). 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).