Rich Solar MEGA 250 12V Panel vs BougeRV 300W Bifacial Panel

• VerificationRich Solar MEGA 250 12V Panel: 6 (higher)BougeRV 300W Bifacial Panel: 2

  only the Rich Solar MEGA 250 12V Panel: UL 61730 listed; only the BougeRV 300W Bifacial Panel: None verifiable.

  Rich Solar MEGA 250 12V Panel

  • UL Listed PV module (QIIA.E553290) as MEGA 250; not on the CEC PV list
  • Holder: Rich Solar Inc (E553290); contract maker Future Star Energy (Shenzhen) (E549773)
  • Standard: QIIA is UL's PV-module safety category (UL 61730); abridged view prints no edition
  • Also: Intertek ETL Listed to UL 61215-1/-1-1/-2 (design qualification) as MEGA-250
  • Claim: page says certified to UL 61730, IEC 61215 and CSA C22.2

  BougeRV 300W Bifacial Panel

  • No directory listing for TBJ300W-B; no certification claimed
  • Standard: UL 61730 needed for a listing
  • Searched: Intertek UL CEC LabTest Certipedia SGS
  • Holder: Guangzhou Boju Information Technology Co. Ltd.
  • Not run: TÜV SÜD directory blocked
• EfficiencyRich Solar MEGA 250 12V Panel: 6 (higher)BougeRV 300W Bifacial Panel: 4

  Rich Solar MEGA 250 12V Panel

  • 250 W over 1.17 m² computes to 21.4 percent module efficiency
  • Marketed: 25.1 percent cell efficiency

  BougeRV 300W Bifacial Panel

  • 300 W over 1557 x 950 mm computes to 20.3 percent module efficiency
  • Marketed: 25 percent cell efficiency on the page and spec sheet
• FeaturesRich Solar MEGA 250 12V Panel: 4BougeRV 300W Bifacial Panel: 6 (higher)

  Rich Solar MEGA 250 12V Panel

  • IP68 junction box and split-cell layout; no bifacial cells or station adapters
  • Cells: 64 half-cut cells, 182 x 91 mm, laid out 4 x 8 x 2

  BougeRV 300W Bifacial Panel

  • Bifacial and an IP68 junction box; no diode count or station adapters
  • Source: IP68 junction box stated on BougeRV's Amazon listing, not the spec sheet
• Warranty & SupportRich Solar MEGA 250 12V Panel: 6BougeRV 300W Bifacial Panel: 8 (higher)

  Rich Solar MEGA 250 12V Panel: 5 Years · BougeRV 300W Bifacial Panel: 10 Years.

  Rich Solar MEGA 250 12V Panel

  • 5-year material warranty on Rich Solar's Amazon listing, the shortest term
  • Conflict: warranty page lists 10 years workmanship, marked prorated
  • Datasheet: says a 25-year limited product warranty

  BougeRV 300W Bifacial Panel

  • 10 years for materials and workmanship, not prorated
  • Condition: original buyer, bougerv.com purchase, proof of purchase

Same score

• CapacityRich Solar MEGA 250 12V Panel: 8BougeRV 300W Bifacial Panel: 8

  Rich Solar MEGA 250 12V Panel

  • 250 W rated, on the 250 to 319 W rung
  • Electrical: 18.9 V and 13.2 A at maximum power, 22.8 V open circuit

  BougeRV 300W Bifacial Panel

  • 300 W rated, on the 250 to 319 W rung for a rigid panel
  • Electrical: 37.6 V and 8.13 A at maximum power, 44.2 V open circuit
• LifespanRich Solar MEGA 250 12V Panel: 7BougeRV 300W Bifacial Panel: 7

  Rich Solar MEGA 250 12V Panel

  • 80 percent of rated output guaranteed at 25 years
  • Schedule: over 95 percent at year five and 90 percent at year ten, per the FAQ

  BougeRV 300W Bifacial Panel

  • Over 80 percent output at 25 years by the warranty policy
  • Page figure: 30-year linear output warranty with no end percentage

Scored for one only

• Operating RangeRich Solar MEGA 250 12V Panel: 5BougeRV 300W Bifacial Panel: —not scored

  Rich Solar MEGA 250 12V Panel

  • Pmax temperature coefficient of -0.35 percent per °C

  BougeRV 300W Bifacial Panel

  Nothing recorded.

Not scored for either

• ValueRich Solar MEGA 250 12V Panel: —not scoredBougeRV 300W Bifacial Panel: —not scored

• RedditRich Solar MEGA 250 12V Panel: 4BougeRV 300W Bifacial Panel: 5 (higher)

  The Rich Solar MEGA 250 12V Panel reading covers the whole brand; the BougeRV 300W Bifacial Panel reading covers the whole brand.

  Rich Solar MEGA 250 12V Panel

  Read the full summary

  • Scope: few Reddit threads name Rich Solar, and those found are complaints
  • Battery: an r/SolarDIY owner's new ALPHA 5 read 6.7 V instead of 48 V, and Rich Solar's technician had not returned his call after two days (August 2023)
  • Order: an r/SolarDIY buyer waited from March for an out-of-stock ground mount, then was told its price had risen from $180 to $699 and cancelled; the refund took months (May 2025)

  BougeRV 300W Bifacial Panel

  Read the full summary

  • Panels: an r/SolarDIY owner who paid $132 each for several 200 W bifacial panels found visible busbar defects on three of them (July 2025)
  • Support: the same owner said BougeRV support sent replacements for the defective panels within a couple of days (July 2025)
  • Delivery: an r/solar poster said a charge controller was delivered to another address in his city and called BougeRV a ripoff (April 2026)
  • Owners: in an r/GoRVing thread on RV solar, several owners named BougeRV 200 W bifacial or TOPCon panels in their setups (November 2025)
• GoogleRich Solar MEGA 250 12V Panel: 5BougeRV 300W Bifacial Panel: 7 (higher)

  The Rich Solar MEGA 250 12V Panel reading covers the whole brand; the BougeRV 300W Bifacial Panel reading covers the whole brand.

  Rich Solar MEGA 250 12V Panel

  Read the full summary

  • Panels: DIY Solar Forum owners of Rich Solar 100 W panels reported them working as rated, one saying eight of them each pushed more than 100 W (August to September 2020)
  • Defects: an owner of 20 of the 100 W poly panels saw faint snail trails after a summer and found one with a broken diode wire (January 2021)
  • Controller: another found Rich Solar's MPPT controller OK but its setup and Bluetooth app in need of work (January 2021)
  • Warranty: a DIY Solar Forum owner reported Rich Solar cut its CIGS panel warranty from 5 years to 1 in 2021 (June 2026); an Escape Forum owner waited six weeks on a warranty claim (August 2024)

  BougeRV 300W Bifacial Panel

  Read the full summary

  • Durability: a DIY Solar Forum owner who paid $400 each for three Yuma 200 W CIGS panels found no delamination after a 30-day, 1,100-mile boat trip (December 2025)
  • Output: the same owner measured a new Yuma 200 W at 137 W, level with a pair of glass panels in the same sun (August 2024)
  • Free unit: another forum owner, given his first Yuma 100 W by BougeRV for review, bought two more and logged about 20 percent more daily output than a monocrystalline panel (September 2023)
  • The Gadgeteer: measured a 100 W CIGS 10 to 20 W below a folding panel lying flat; the review carries affiliate links and a $40 code (November 2022)
  • Shade: a Sprinter-Source owner chose a 200 W CIGS for producing power when nearly 75 percent shaded (June 2024)
• YouTubeRich Solar MEGA 250 12V Panel: 6BougeRV 300W Bifacial Panel: 6

  The Rich Solar MEGA 250 12V Panel reading covers the whole brand; the BougeRV 300W Bifacial Panel reading covers the whole brand.

  Rich Solar MEGA 250 12V Panel

  Read the full summary

  • Will Prowse: in a test of several panels a Rich Solar 200 W mono gave 157 W, 78.5 percent of rating, and a 100 W poly 88 W; he kept the poly first on his list for a small panel (May 2021, about 366,000 views)
  • Disclosure: Will Prowse states every video includes paid promotion or free product and some links are affiliate links

  BougeRV 300W Bifacial Panel

  Read the full summary

  • Jeremiah Mcintosh: found the Yuma 200 W CIGS did not disappoint in low light or aimed at the sun against his 200 W foldables (April 2023, about 136,000 views)
  • Disclosure: he offers 15 percent off bougerv.com with the code McIntosh and links Amazon affiliate pages
  • The Off-Grid Mountain Homestead: tested a CIGS panel in full sun and cloud and called it very nice and ultra lightweight (September 2024, about 1,100 views)
  • Disclosure: he received the panel free and links it through Amazon Associates
  • StoneBroke Adventure: said the 24 V 200 W N-type bifacial outperformed its rating in real-world use (October 2025), in a video marked as including paid promotion
• AmazonRich Solar MEGA 250 12V Panel: 6 (higher)BougeRV 300W Bifacial Panel: 2

  Rich Solar MEGA 250 12V Panel

  Liked

  • About 200 W per panel in use, per one owner
  • Light and compact for the output, per one owner
  • Performs as advertised, per one owner

  Complaints

  • Connectors only IP67, per one owner

  Read the full summary

  • Rating: 4.4 out of 5 from 30 ratings on RICH SOLAR's own Amazon US listing for the MEGA 250 12 V, 76 percent five-star and 6 percent one-star (October 2026)
  • Output: one owner averages about 200 W per panel and chose them for their light weight and compact size (read October 2026)
  • Connectors: another finds them as advertised but marks them down for IP67 connectors (read October 2026)
  • Onyx: the all-black version's own listing reads 3.7 from 9 ratings (October 2026)

  BougeRV 300W Bifacial Panel

  Liked

  • Light for its size and well packed, per one Vine reviewer
  • Doing well in winter conditions, per one Vine reviewer

  Complaints

  • Output below the 300 W rating, per two owners
  • Poor output for the price, per one owner
  • Electrical specs not labelled on the panel, per one Vine reviewer

  Read the full summary

  • Listing: BougeRV's Amazon US listing for the 300 W bifacial panel (B0FHKJ76SR) reads 3.3 from 15 ratings (October 2026); several top reviews are Vine reviews of free units
  • Output: one owner said the panels seem under 300 W at standard conditions and called output poor for the price; another said all would need about 285 W to earn more stars
  • Rewards: BougeRV runs an Amazon-order rewards page on its own site, so this pool scores one point below what the star split alone gives