Renogy 250W Bifacial Panel vs Rich Solar MEGA 250 12V Panel

• VerificationRenogy 250W Bifacial Panel: 2Rich Solar MEGA 250 12V Panel: 6 (higher)

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

  Renogy 250W Bifacial Panel

  • No certifier directory lists the RSP250DCT sold here
  • Sibling: Intertek lists Renogy's RSP250DT bifacial panel to UL 61730
  • Listings: the datasheet names EN IEC 61730 and EN IEC 61215

  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
• FeaturesRenogy 250W Bifacial Panel: 6 (higher)Rich Solar MEGA 250 12V Panel: 4

  Renogy 250W Bifacial Panel

  • IP68 junction box and bifacial cells earn 4 of 8 points
  • Rear face: an 80 percent bifaciality factor, by Renogy's claim
  • Missing: two bypass diodes and no split-cell layout
  • Leads: 12 AWG leads of 39.4 in, for the 13.49 A short-circuit current

  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
• Warranty & SupportRenogy 250W Bifacial Panel: 8 (higher)Rich Solar MEGA 250 12V Panel: 6

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

  Renogy 250W Bifacial Panel

  • 10 years on materials and workmanship

  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

Same score

• CapacityRenogy 250W Bifacial Panel: 8Rich Solar MEGA 250 12V Panel: 8

  Renogy 250W Bifacial Panel

  • 250 W, on the 250-319 W rung for a rigid panel

  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
• EfficiencyRenogy 250W Bifacial Panel: 6Rich Solar MEGA 250 12V Panel: 6

  Renogy 250W Bifacial Panel

  • 250 W from 1.18 square meters works out to 21.2 percent, as the datasheet prints
  • Cell figure: the advertised 25 percent is cell efficiency, not module

  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
• Operating RangeRenogy 250W Bifacial Panel: 5Rich Solar MEGA 250 12V Panel: 5

  Renogy 250W Bifacial Panel

  • Datasheet temperature coefficient of Pmax -0.32 percent per °C
  • Conflict: product page and Amazon listing claim -0.29; datasheet says -0.32

  Rich Solar MEGA 250 12V Panel

  • Pmax temperature coefficient of -0.35 percent per °C
• LifespanRenogy 250W Bifacial Panel: 7Rich Solar MEGA 250 12V Panel: 7

  Renogy 250W Bifacial Panel

  • Warranty schedule holds output at 80 percent for 25 years
  • Steps: 95 percent for 5 years, 90 percent for 10

  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

Not scored for either

• ValueRenogy 250W Bifacial Panel: —not scoredRich Solar MEGA 250 12V Panel: —not scored

• RedditRenogy 250W Bifacial Panel: 7 (higher)Rich Solar MEGA 250 12V Panel: 4

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

  Renogy 250W Bifacial Panel

  Read the full summary

  • Durable: an r/OffGrid owner has run several Renogy rigid panels for more than a decade with none failed; an r/vandwellers thread sums it up as panels fine, other gear less so
  • Warranty: an r/VanLife owner's RSP200D lost half its voltage after about 18 months, and Renogy shipped a replacement in two weeks under the 5-year warranty; that poster is quoted on Renogy's own ShadowFlux page
  • Support: an r/SolarDIY buyer of the 200 W suitcase reported a defective charge controller, two wrong replacement parts and dozens of emails before a 20 percent refund (2025)

  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)
• GoogleRenogy 250W Bifacial Panel: 6 (higher)Rich Solar MEGA 250 12V Panel: 5

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

  Renogy 250W Bifacial Panel

  Read the full summary

  • Footprint Hero: links Renogy panels through Amazon and Renogy's own affiliate program; ranked Renogy's older 100 W mono panel first of five 100 W panels it tested
  • Tests: 71.6 W peak in a December output test (2021) and 570 Wh over 24 hours against 490 Wh from a Newpowa (2023)
  • DIY Solar Forum: a 2022 thread opens with an owner whose Renogy gear still works after a decade
  • Low output: a thread titled 'I only get 85W out of my Two Renogy 100W panels' reports one panel as low as 40 percent of rating and four averaging 54 percent

  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)
• YouTubeRenogy 250W Bifacial Panel: 6Rich Solar MEGA 250 12V Panel: 6

  The Rich Solar MEGA 250 12V Panel reading covers the whole brand.

  Renogy 250W Bifacial Panel

  Liked

  • Powers a bedroom's electronics through an EcoFlow Delta 2 with two panels, per one owner
  • 236 W measured from the 250 W panel in haze, per one tester

  Read the full summary

  • Coverage: two owner-made videos, one with a commission tie
  • Jen Tran: runs two of the panels into an EcoFlow Delta 2 to power a bedroom's electronics off-grid and calls them working fantastically, with no sponsorship stated (November 2024, about 4,300 views)
  • Johnny's Weekends: measured 236 W from one panel in hazy conditions in a shoppable Amazon Live video, a format that pays the creator commission on the product (2025)

  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
• AmazonRenogy 250W Bifacial Panel: 8 (higher)Rich Solar MEGA 250 12V Panel: 6

  The Renogy 250W Bifacial Panel reading covers its product line.

  Renogy 250W Bifacial Panel

  Read the full summary

  • Listing: the 250 W panel's Amazon US listing (B0D2RDWTJB) shares its ratings with the 100 W and 200 W bifacial sizes as one family
  • Rating: 4.4 from 54 ratings, 76 percent five-star and 7 percent one-star; most reviews name the 250 W panel
  • Praised: Amazon's review summary says owners like the build quality
  • Criticised: power output draws mixed reports, from at or above 250 W to one owner's 170 W; four of six who mention value call it pricey
  • Second listing: an unavailable 250 W listing (B0DWX3YSV7) reads 5.0 from 7 ratings, under the ten-rating floor

  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)