Product comparison · Flexible Solar Panels

Renogy 100W Flexible Panel vs Rich Solar MEGA 100 FLEX Panel

The Renogy 100W Flexible Panel scores 4.0 and ranks 7th of 10 in Flexible Solar Panels; the Rich Solar MEGA 100 FLEX Panel scores 3.8 and ranks 9th of 10 in Flexible Solar Panels. The 100W Flexible Panel leads on warranty & support, the MEGA 100 FLEX Panel on operating range.

All 58 Renogy products
Renogy 100W Lightweight Flexible Solar Panel

Renogy 100W Flexible Panel

$150 · 7th of 10 in Flexible Solar Panels

Buy Now
  • Warranty & Support — 6 against 1
4.0
vs
3.8
All 46 Rich Solar products
Rich Solar MEGA 100 FLEX 12V 100W Flexible Solar Panel

Rich Solar MEGA 100 FLEX Panel

$170 · 9th of 10 in Flexible Solar Panels

Buy Now
  • Operating Range — 5 against 3

Across everything we scored, Renogy 100W Flexible Panel sits 0.19 ahead — led by warranty & support.

Verdict

100W Flexible Panel ahead · +0.19 (4.0 vs 3.8)

Pick the Renogy 100W Flexible Panel when

Warranty & support matters6vs1

Lifespan matters3vs1

A longer warranty matters5 Yearsvs1 Year

Pick the Rich Solar MEGA 100 FLEX Panel when

Operating range matters5vs3

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

Usability Renogy 100W Flexible Panel and Rich Solar MEGA 100 FLEX Panel, scored 0 to 10

  • Warranty & SupportRenogy 100W Flexible Panel: 6 (higher)Rich Solar MEGA 100 FLEX Panel: 1

    Renogy 100W Flexible Panel: 5 Years · Rich Solar MEGA 100 FLEX Panel: 1 Year.

    Renogy 100W Flexible Panel

    • 5 years on material and workmanship

    Rich Solar MEGA 100 FLEX Panel

    • 1 year of material and workmanship cover, not prorated
    • Scope: Rich Solar's FAQ also gives lightweight flexible panels 1 year
  • Operating RangeRenogy 100W Flexible Panel: 3Rich Solar MEGA 100 FLEX Panel: 5 (higher)

    Renogy 100W Flexible Panel

    • Temperature coefficient of Pmax -0.38 percent per degree C

    Rich Solar MEGA 100 FLEX 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
  • LifespanRenogy 100W Flexible Panel: 3 (higher)Rich Solar MEGA 100 FLEX Panel: 1

    Renogy 100W Flexible Panel

    • Product page and warranty PDF cover output at 90 percent for 5 years
    • Shorter: Renogy's rigid panels carry 25 years

    Rich Solar MEGA 100 FLEX Panel

    • No power-output warranty published; flexible panels capped at 5

Same score

  • CapacityRenogy 100W Flexible Panel: 1Rich Solar MEGA 100 FLEX Panel: 1

    Renogy 100W Flexible Panel

    • 100 W, the bottom rung of the flexible-panel ladder

    Rich Solar MEGA 100 FLEX Panel

    • 100 W rated, on the 100 to 119 W rung for flexible panels
    • Electrical: 17.1 V and 5.85 A at Pmax, 20.4 V Voc, 6.13 A Isc
    • Tolerance: 0 to +5 W positive power tolerance
  • EfficiencyRenogy 100W Flexible Panel: 1Rich Solar MEGA 100 FLEX Panel: 1

    Renogy 100W Flexible Panel

    • 100 W from 1.093 by 0.582 m works out to 15.7 percent

    Rich Solar MEGA 100 FLEX Panel

    • 17.0 percent module efficiency from 1468 x 400 mm; 22.8 percent is the cell figure
    • Spec sheet: Rich Solar's own sheet also prints 17 percent module efficiency
  • FeaturesRenogy 100W Flexible Panel: 3Rich Solar MEGA 100 FLEX Panel: 3

    Renogy 100W Flexible Panel

    • IP67 junction box earns 2 of 8 points
    • Missing: no ETFE front, station adapters or split-cell layout published
    • Bending: up to 240 degrees, by Renogy's page

    Rich Solar MEGA 100 FLEX Panel

    • IP68 junction box and MC4 leads; no front sheet, diodes or adapters stated
    • Cells: 30 monocrystalline ten-busbar cells, 182 x 91 mm
    • Mounting: pre-drilled holes and adhesive backing
  • VerificationRenogy 100W Flexible Panel: 2Rich Solar MEGA 100 FLEX Panel: 2

    Renogy 100W Flexible Panel

    • No certifier directory lists this model
    • Missing: no certification standard named on the product page or datasheet

    Rich Solar MEGA 100 FLEX Panel

    • No listing for RS-F100B in any directory; page claims none
    • Claim: page names no safety standard

Not scored for either

  • ValueRenogy 100W Flexible Panel: not scoredRich Solar MEGA 100 FLEX Panel: not scored

Social score about the Renogy 100W Flexible Panel and the Rich Solar MEGA 100 FLEX Panel

  • RedditRenogy 100W Flexible Panel: 6 (higher)Rich Solar MEGA 100 FLEX Panel: 4

    The Renogy 100W Flexible Panel reading covers its product line; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy 100W Flexible Panel

    Read the full summary
    • Few reports: owner reports on Reddit about Renogy's flexible panels are few
    • Durable: one r/SolarDIY owner said flexible Renogy panels trimmed to fit a van roof still worked after about 2 years (January 2025)

    Rich Solar MEGA 100 FLEX 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 100W Flexible Panel: 3Rich Solar MEGA 100 FLEX Panel: 5 (higher)

    The Renogy 100W Flexible Panel reading covers its product line; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy 100W Flexible Panel

    Read the full summary
    • Faults: forum owners of Renogy's DB-H flexible line report delamination
    • iRV2: an owner's 160 W panel from the same line delaminated and let water in under 4 months after it was glued to an RV roof; Amazon, not Renogy, replaced it (July 2019)
    • DIY Solar Forum: an owner of eight 160 W panels found one delaminating after almost 5 years and 50,000 miles and opened a warranty ticket (February 2023)

    Rich Solar MEGA 100 FLEX 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 100W Flexible Panel: 6Rich Solar MEGA 100 FLEX Panel: 6

    The Renogy 100W Flexible Panel reading covers the whole brand; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy 100W Flexible Panel

    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 FLEX 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 100W Flexible Panel: 7Rich Solar MEGA 100 FLEX Panel: 8 (higher)

    The Renogy 100W Flexible Panel reading covers its product line; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy 100W Flexible Panel

    Read the full summary
    • Listing: Renogy's 100W-Black/White flexible listing on Amazon US (B07BMNGVV3) reads 4.4 from 967 ratings, 72 percent five-star and 6 percent one-star
    • Caveat: its specification block describes an earlier 48 by 21.5 in, 4 lb generation rather than the current 43.0 by 22.9 in, 5.3 lb panel
    • Output: Amazon's review summary reports mixed power output, with 16 of 48 tagged reviews negative and one owner seeing 52 W at most in full sun
    • Durability: mixed, 7 of 22 negative

    Rich Solar MEGA 100 FLEX 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 100W Flexible Panel vs Rich Solar MEGA 100 FLEX Panel: pros and cons

Renogy 100W Flexible Panel

Overall score 4.0

Strengths

  • Bends farby Renogy's page
  • 5.3 lb at 0.1 in thickwith no frame
  • Sealed junction box and connectors
  • Workmanship covered for 5 years
  • 12 AWG output leads of 27.6 in

Drawbacks

  • Low module efficiency
  • Output covered for 5 years only
  • Loses more output in heat
  • No front-sheet material publishedETFE or PET
  • $10.00 more than Renogy's Black Division RSP100DL-36 at the same 100 W, size and weight
  • No certification standard named

Rich Solar MEGA 100 FLEX Panel

Overall score 3.8

Strengths

  • Bends to fit curved roofs
  • Very light and thin
  • Well-sealed junction box
  • Rated output is a floornot a ceiling
  • Holes and adhesive backing for mounting

Drawbacks

  • One-year warranty only
  • No power-output guarantee
  • Module efficiency well under the cell figure marketed
  • Front-sheet material not published
  • Short pre-attached leads

Renogy 100W Flexible Panel vs Rich Solar MEGA 100 FLEX Panel: the numbers

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

4.0
Overall
Usability2.6
Social5.5

7th of 10 in Flexible Panels

3.8
Overall
Usability1.9
Social5.8

9th of 10 in Flexible Panels

  • Warranty
    Renogy More5 Years
    Rich Solar1 Year
  • Weight
    Renogy5.3 lb
    Rich Solar4.8 lb

Same on both

  • Not listedSystem voltage
  • Not listedCapacity
  • 100-149 WPanel power
  • Not listedAC output
  • Not listedCharge current
  • Not listedCell type
  • 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

Renogy 200W Flexible Solar Panel
Top scoredRenogy 200W Flexible Panel$312$162 more
5.3
What’s different
  • Panel power: 200-249 W, not 100-149 W
Pick it ifCapacity matters8vs1
Renogy 100W Black Division Lightweight Flexible Solar Panel
Lowest priceRenogy Black Division 100W Flexible$140$10 less
4.4
What’s different
  • Nothing we record differs.

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 PRO FLEX 24V 100W Flexible Solar Panel
Lowest priceRich Solar MEGA 100 PRO FLEX 24V Panel$170same price
3.8
What’s different
  • Nothing we record differs.

Renogy 100W Flexible Panel vs Rich Solar MEGA 100 FLEX Panel: common questions

Is the Renogy 100W Flexible Panel better than the Rich Solar MEGA 100 FLEX Panel?

On our scores, the Renogy 100W Flexible Panel is ahead, 4.0 against 3.8. The Renogy 100W Flexible Panel leads on warranty & support (6 against 1) and lifespan (3 against 1). The Rich Solar MEGA 100 FLEX Panel leads on operating range (5 against 3).

Which is cheaper, the Renogy 100W Flexible Panel or the Rich Solar MEGA 100 FLEX Panel?

The Renogy 100W Flexible Panel, at $150 against $170: $20 less.

Which has the longer warranty, the Renogy 100W Flexible Panel or the Rich Solar MEGA 100 FLEX Panel?

The Renogy 100W Flexible Panel: 5 Years, against 1 Year.

What do owners say about the Renogy 100W Flexible Panel and the Rich Solar MEGA 100 FLEX Panel?

Across 4 independent sources scored for both, the Renogy 100W Flexible Panel is ahead on Reddit; the Rich Solar MEGA 100 FLEX Panel is ahead on Google and 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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