Rich Solar MEGA 100 FLEX 12V 100W Flexible Solar Panel

9th of 10 we've scored in Flexible Solar Panels

9th of 10 in Flexible Panels

Rich Solar MEGA 100 FLEX 12V 100W Flexible Solar Panel

100-149 W panel
1-year warranty

SVT Score, Lower

Usability1.9/10Social5.8/10The SVT Score is placed on its category's range

Versus

SVT SCORESRead review

A 100 W, 12 V flexible panel 0.1 in thick and 4.8 lb, with an IP68 junction box and MC4 leads, for bonding to curved van, RV and boat roofs.

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SKU: RS-F100B Category: Flexible Solar Panels Brand: Rich Solar

Usability

1.9 out of 10

Capacity1100 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

Better on capacityRenogy 200W Flexible PanelAt 200 W it sits on the 200-219 W rung of the flexible-panel ladder. $311.99Scores 8.0

Efficiency117.0 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

Operating Range5-0.35 percent per °C temperature coefficient of Pmax

Loads: rated 5,400 Pa snow and 2,400 Pa wind; -40 to 185 °F

Lifespan1No power-output warranty published; flexible panels capped at 5

Better on lifespanRenogy 200W Flexible PanelRenogy's product page covers output at 90 percent for 5 years. $311.99Scores 3.0

Features3IP68 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

Better on featuresRenogy 200W Flexible PanelIP68 junction box. $311.99Scores 6.0

Verification2No listing for RS-F100B in any directory; page claims none

Claim: page names no safety standard

Warranty & Support11 year of material and workmanship cover, not prorated

Scope: Rich Solar's FAQ also gives lightweight flexible panels 1 year

Better on warranty & supportRenogy 200W Flexible PanelRenogy covers material. $311.99Scores 6.0

Price

List: $169.99 at richsolar.com

Summary

Bends to curved roofs, one-year Warranty

What it is: a 100 W, 12 V flexible panel 0.1 in thick for bonding to curved van, RV and boat roofs
The trade-off: very light and bendable, but 17 percent module efficiency, a 1-year warranty and no output guarantee
Not checked: Rich Solar does not publish the front-sheet material or the bypass-diode count
Look elsewhere for: a long warranty or a guaranteed output level

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

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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

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Social score

5.8 out of 10

RedditBrand-level4 out of 10

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)

GoogleBrand-level5 out of 10

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)

YouTubeBrand-level6 out of 10

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

AmazonBrand-level8 out of 10

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)

User reviewsNot scored

The retailer pool is blank: no US retailer listing carries ten native reviews of a Rich Solar product, and its Walmart listings hold none or one.

Trustpilot

Trustpilot rates richsolar.com 3.2 from 2 reviews, one three-star and one one-star, on a page claimed in October 2023 with no recent invitations (October 2026).

Track record

The BBB rates Rich Solar of Ontario, California an F, not accredited, on 5 complaints closed in three years (October 2026).
No CPSC or Health Canada recall names Rich Solar, searched in October 2026.
Brinkley RV's NHTSA recall 25V042000 (January 2025) replaced an overheating Rich Solar MPPT solar charge controller in up to 1,723 Model G trailers.

Not countedExcluded

Not counted in any pool: the testimonials on richsolar.com, the RICH SOLAR TALK YouTube channel, Rich Solar's Facebook pages and groups, and any brand-run subreddit.
Also not counted: Rich Solar's affiliate program and creator collaborations, dealer pages, and Explorist.life, whose co-branded panel ties it to Rich Solar.

Summary

Brand-level

3.2 on Trustpilot, an F from the BBB

Specs

CapacityNot applicable
AC OutputNot applicable
System VoltageNot applicable
Panel Power100-149 W
Charge CurrentNot applicable
Safety ListingNone verifiable
Low-Temp ChargingNot applicable
Warranty1 Year
MonitoringNot applicable
Weight4.8 lb

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Not published by Rich Solar: cell type.

At a glance

57.8 x 15.7 x 0.1 in
12 AWG leads, 3 ft each
30 cells, ten busbars
1,500 V DC system maximum

Company

Rich Solar is the brand of Rich Solar Inc., which says it began in 2005 and keeps its offices and warehouse in Ontario, California.

Where it sells

It sells with a cart at richsolar.com, through a RICH SOLAR Amazon brand store run by the seller SUNRICH ENERGY, on Walmart, and through dealers such as Outbound Power.

Description

The MEGA 100 FLEX, model RS-F100B, is a 100 W, 12 V flexible monocrystalline panel with 30 ten-busbar cells, rated 17.1 V and 5.85 A at maximum power, 20.4 V open-circuit and 6.13 A short-circuit, with a 0 to +5 W power tolerance.

It measures 57.8 x 15.7 x 0.1 in (1468 x 400 mm), weighs 4.8 lb, bends up to 360 degrees and is rated for 5,400 Pa snow and 2,400 Pa wind loads. Its IP68 junction box carries a pair of 12 AWG leads, 3 ft each, ending in IP67 MC4 connectors; it mounts by pre-drilled holes or adhesive backing.

Rich Solar's spec sheet rates the Pmax temperature coefficient at -0.35 percent per °C, a 15 A series fuse and a 1,500 V DC system maximum, and the panel carries a 1-year material and workmanship warranty.