Product comparison · Flexible Solar Panels

Renogy Flex ShadowFlux 100W vs Rich Solar MEGA 100 PRO FLEX 24V Panel

The Renogy Flex ShadowFlux 100W scores 4.3 and ranks 6th of 10 in Flexible Solar Panels; the Rich Solar MEGA 100 PRO FLEX 24V Panel scores 3.8 and ranks 9th of 10 in Flexible Solar Panels. The Flex ShadowFlux 100W leads on warranty & support.

All 58 Renogy products
Renogy Flex ShadowFlux 100W Flexible Solar Panel

Renogy Flex ShadowFlux 100W

$173 · 6th of 10 in Flexible Solar Panels

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  • Warranty & Support — 4 against 1
4.3
vs
3.8

Across everything we scored, Renogy Flex ShadowFlux 100W sits 0.45 ahead — led by warranty & support.

Verdict

Flex ShadowFlux 100W ahead · +0.45 (4.3 vs 3.8)

Pick the Renogy Flex ShadowFlux 100W when

Warranty & support matters4vs1

Features matters4vs3

A longer warranty matters3 Yearsvs1 Year

Pick the Rich Solar MEGA 100 PRO FLEX 24V Panel when

A criterion we do not score decides itthe MEGA 100 PRO FLEX 24V Panel leads on none of the ones we do

Scored 15 October 2026 from published specs and owner reviews. We don't buy or test units. How we score

Usability Renogy Flex ShadowFlux 100W and Rich Solar MEGA 100 PRO FLEX 24V Panel, scored 0 to 10

  • Warranty & SupportRenogy Flex ShadowFlux 100W: 4 (higher)Rich Solar MEGA 100 PRO FLEX 24V Panel: 1

    Renogy Flex ShadowFlux 100W: 3 Years · Rich Solar MEGA 100 PRO FLEX 24V Panel: 1 Year.

    Renogy Flex ShadowFlux 100W

    • 3 years on materials and workmanship
    • Shorter: Renogy gives its older flexible panels 5 years

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • 1 year of material and workmanship cover, not prorated
    • Scope: Rich Solar's warranty table lists flexible panels at 1 year
  • FeaturesRenogy Flex ShadowFlux 100W: 4 (higher)Rich Solar MEGA 100 PRO FLEX 24V Panel: 3

    Renogy Flex ShadowFlux 100W

    • IP68 rating and 30 bypass diodes earn 3 of 8 points
    • Missing: no bifacial cells, no ETFE or glass front, no station adapters
    • Bending: up to 270 degrees along the long axis; Renogy's FAQ limits horizontal bending

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • IP68 junction box and MC4 leads; no front sheet, diodes or adapters stated
    • Cells: 60 half-width ten-busbar cells, 182 x 45.5 mm
    • Mounting: pre-drilled holes and adhesive backing

Same score

  • CapacityRenogy Flex ShadowFlux 100W: 1Rich Solar MEGA 100 PRO FLEX 24V Panel: 1

    Renogy Flex ShadowFlux 100W

    • 100 W, the bottom rung for a flexible panel

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • 100 W rated, on the 100 to 119 W rung for flexible panels
    • Electrical: 34.2 V and 2.92 A at Pmax, 40.8 V Voc, 3.15 A Isc
    • Tolerance: 0 to +5 W positive power tolerance
  • EfficiencyRenogy Flex ShadowFlux 100W: 1Rich Solar MEGA 100 PRO FLEX 24V Panel: 1

    Renogy Flex ShadowFlux 100W

    • 100 W from 0.577 m² works out to 17.3 percent
    • Cell figure: Renogy advertises 25 percent, a cell figure

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • 16.9 percent module efficiency from 1480 x 400 mm; 22.8 percent is the cell figure
    • Spec sheet: Rich Solar's own sheet also prints 16.9 percent module efficiency
  • LifespanRenogy Flex ShadowFlux 100W: 1Rich Solar MEGA 100 PRO FLEX 24V Panel: 1

    Renogy Flex ShadowFlux 100W

    • 3-year output warranty with no end-point percentage, below the 5-year rung
    • Cap: Will Prowse found every flexible panel he tested failed or lost significant output within 6 to 24 months
    • Tie: Prowse is paid through sponsorships and affiliate links
    • Not scored: operating range, since Renogy publishes no temperature coefficient

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • No power-output warranty published; flexible panels capped at 5
  • VerificationRenogy Flex ShadowFlux 100W: 2Rich Solar MEGA 100 PRO FLEX 24V Panel: 2

    Renogy Flex ShadowFlux 100W

    • No certifier directory lists this model
    • Listings: Renogy lists CE, UKCA, CA65, TSCA and RCM, with no UL 61730 claim

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • No listing for RS-F100PB in any directory; page claims none
    • Claim: page names no safety standard

Scored for one only

  • Operating RangeRenogy Flex ShadowFlux 100W: not scoredRich Solar MEGA 100 PRO FLEX 24V Panel: 5

    Renogy Flex ShadowFlux 100W

    Nothing recorded.

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    • -0.35 percent per °C temperature coefficient of Pmax
    • Loads: rated 5,400 Pa snow and 2,400 Pa wind; -40 to 185 °F

Not scored for either

  • ValueRenogy Flex ShadowFlux 100W: not scoredRich Solar MEGA 100 PRO FLEX 24V Panel: not scored

Social score about the Renogy Flex ShadowFlux 100W and the Rich Solar MEGA 100 PRO FLEX 24V Panel

  • RedditRenogy Flex ShadowFlux 100W: 7 (higher)Rich Solar MEGA 100 PRO FLEX 24V Panel: 4

    The Renogy Flex ShadowFlux 100W reading covers the whole brand; the Rich Solar MEGA 100 PRO FLEX 24V Panel reading covers the whole brand.

    Renogy Flex ShadowFlux 100W

    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 100 PRO FLEX 24V 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 Flex ShadowFlux 100W: 6 (higher)Rich Solar MEGA 100 PRO FLEX 24V Panel: 5

    The Renogy Flex ShadowFlux 100W reading covers the whole brand; the Rich Solar MEGA 100 PRO FLEX 24V Panel reading covers the whole brand.

    Renogy Flex ShadowFlux 100W

    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 100 PRO FLEX 24V 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 Flex ShadowFlux 100W: 6Rich Solar MEGA 100 PRO FLEX 24V Panel: 6

    The Renogy Flex ShadowFlux 100W reading covers the whole brand; the Rich Solar MEGA 100 PRO FLEX 24V Panel reading covers the whole brand.

    Renogy Flex ShadowFlux 100W

    Read the full summary
    • Disclosure: both channels found carry a tie to the panels they review
    • Freedom in a Can: passes on a 10 percent Renogy code through Renogy's affiliate link; found no delamination on two 100 W flexible panels after 9 months and 9,000 miles
    • Johnny's Weekends: earns Amazon commission on the panels it links; found Renogy's 200 W flexible panel performed well but trailed a CIGS panel under shade (2023, about 128,000 views)

    Rich Solar MEGA 100 PRO FLEX 24V 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 Flex ShadowFlux 100W: 7Rich Solar MEGA 100 PRO FLEX 24V Panel: 8 (higher)

    The Renogy Flex ShadowFlux 100W reading covers its product line; the Rich Solar MEGA 100 PRO FLEX 24V Panel reading covers the whole brand.

    Renogy Flex ShadowFlux 100W

    Read the full summary
    • Listing: Renogy's Amazon US variation family for the Flex ShadowFlux (100 W B0HJR1VRF7, 200 W B0HJQQ6RY4) reads 4.4 from 474 ratings across both sizes and pack options
    • Caveat: Amazon marks the listing new in the past month, and its top reviews date from 2022 and describe Renogy's earlier 175 W flexible panels
    • Scope: the figure describes the previous flexible range rather than this panel

    Rich Solar MEGA 100 PRO FLEX 24V Panel

    Read the full summary
    • Seller: Rich Solar's Amazon US listings sit in a RICH SOLAR brand store sold and shipped by SUNRICH ENERGY
    • Panels: the 100 W 12 V panel family reads 4.7 from 1,326 ratings, 84 percent five-star and 2 percent one-star; the 200 W 12 V panel 4.6 from 519; the 200 W 24 V panel 4.3 from 252 (October 2026)
    • Controller: the BRAVO 40 MPPT controller reads 3.8 from 4 ratings (October 2026)

Renogy Flex ShadowFlux 100W vs Rich Solar MEGA 100 PRO FLEX 24V Panel: pros and cons

Renogy Flex ShadowFlux 100W

Overall score 4.3

Strengths

  • Very light and thin
  • IP68 rating
  • Cell-level shade tolerance
  • Reinforced TPO front sheet
  • Rated for heavy snow and wind loads
  • Suits 12 V and 24 V systems

Drawbacks

  • Low module efficiency
  • Short workmanship warranty
  • Short output warranty with no end point
  • No temperature coefficient published
  • No UL 61730 claim
  • Bends along the long axis only

Strengths

  • Bends to fit curved roofs
  • Very light and thin
  • Higher voltage suits longer cable runs
  • Well-sealed junction box
  • Rated output is a floornot a ceiling

Drawbacks

  • One-year warranty only
  • No power-output guarantee
  • Module efficiency well under the cell figure marketed
  • Needs an MPPT controller for a 12 V bank
  • Front-sheet material not published

Renogy Flex ShadowFlux 100W vs Rich Solar MEGA 100 PRO FLEX 24V Panel: the numbers

Price, scores and rank, then only the specs that differ. Green marks the side with more.

4.3
Overall
Usability2.1
Social6.5

6th of 10 in Flexible Panels

3.8
Overall
Usability1.9
Social5.8

9th of 10 in Flexible Panels

  • Cell type
    RenogyTOPCon (N-type)
    Rich SolarNot listed
  • Warranty
    Renogy More3 Years
    Rich Solar1 Year
  • Weight
    Renogy4.2 lb
    Rich Solar4.8 lb

Same on both

  • Not listedSystem voltage
  • Not listedCapacity
  • 100-149 WPanel power
  • Not listedAC output
  • Not listedCharge current
  • Not listedLow-temperature charging
  • Not listedMonitoring
  • None verifiableSafety listings

We earn a commission if you buy through these links. It never changes a score.

Not sold on either one?

The top-scored and the cheapest other pick from each brand.

More from Renogy 4 scored in Flexible Solar Panels

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5.3
What’s different
  • Panel power: 200-249 W, not 100-149 W
  • Warranty: 5 Years, not 3 Years
Pick it ifCapacity matters8vs1
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What’s different
  • Warranty: 5 Years, not 3 Years
Pick it ifWarranty & support matters6vs4

More from Rich Solar 2 scored in Flexible Solar Panels

Rich Solar MEGA 200 PRO FLEX 24V 200W Flexible Solar Panel
4.5
What’s different
  • Panel power: 200-249 W, not 100-149 W
Pick it ifCapacity matters8vs1
Rich Solar MEGA 100 FLEX 12V 100W Flexible Solar Panel
Lowest priceRich Solar MEGA 100 FLEX Panel$170same price
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What’s different
  • Nothing we record differs.

Renogy Flex ShadowFlux 100W vs Rich Solar MEGA 100 PRO FLEX 24V Panel: common questions

Is the Renogy Flex ShadowFlux 100W better than the Rich Solar MEGA 100 PRO FLEX 24V Panel?

On our scores, the Renogy Flex ShadowFlux 100W is ahead, 4.3 against 3.8. The Renogy Flex ShadowFlux 100W leads on warranty & support (4 against 1) and features (4 against 3).

Which has the longer warranty, the Renogy Flex ShadowFlux 100W or the Rich Solar MEGA 100 PRO FLEX 24V Panel?

The Renogy Flex ShadowFlux 100W: 3 Years, against 1 Year.

What do owners say about the Renogy Flex ShadowFlux 100W and the Rich Solar MEGA 100 PRO FLEX 24V Panel?

Across 4 independent sources scored for both, the Renogy Flex ShadowFlux 100W is ahead on Reddit and Google; the Rich Solar MEGA 100 PRO FLEX 24V Panel is ahead on Amazon; YouTube is level.

More flexible solar panels comparisons

More head-to-heads with these two, plus the full brand comparison.

Scores calculated 15 October 2026 · Products excluded where fewer than two independent sources cover them ·  · How we score

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