Rich Solar BRAVO 40 MPPT Controller vs BougeRV Sunflow 40A MPPT Controller

• EfficiencyRich Solar BRAVO 40 MPPT Controller: 8 (higher)BougeRV Sunflow 40A MPPT Controller: 4

  Rich Solar BRAVO 40 MPPT Controller

  • Up to 98 percent conversion efficiency, on the 98.0 to 98.9 percent rung
  • Tracking: 99.5 percent or better MPPT tracking, not scored

  BougeRV Sunflow 40A MPPT Controller

  • Manual rates conversion above 95 percent; the page's 99 percent is not scored
  • Tracking: above 99 percent in the manual, 99.5 percent on the page
  • No-load: 10 mA or less
• VerificationRich Solar BRAVO 40 MPPT Controller: 4 (higher)BougeRV Sunflow 40A MPPT Controller: 2

  only the Rich Solar BRAVO 40 MPPT Controller: Recognized component only; only the BougeRV Sunflow 40A MPPT Controller: None verifiable.

  Rich Solar BRAVO 40 MPPT Controller

  • UL 1741 and CSA 107.1 Recognized Component only (ETL) as RS-MPPT40P
  • Holder: Rich Solar Inc. (Norco, CA) and Future Star Energy (Shenzhen)
  • Claim: page says UL 1741 certified; the record is Recognized, not Listed

  BougeRV Sunflow 40A MPPT Controller

  • No directory listing for BJ2440N; no certification claimed
  • Standard: UL 1741 needed for a listing (UL 458 or CSA 107.1 also count)
  • Searched: Intertek UL CEC LabTest Certipedia SGS
  • Holder: Guangzhou Boju Information Technology Co. Ltd.
  • Not run: TÜV SÜD directory blocked
• Operating RangeRich Solar BRAVO 40 MPPT Controller: 5 (higher)BougeRV Sunflow 40A MPPT Controller: 3

  Rich Solar BRAVO 40 MPPT Controller

  • 100 V maximum PV open-circuit voltage, on the 100 to 149 V rung
  • Window: tracks between 15 and 72 V
  • Temperature: −31 to 122°F on the combined spec sheet

  BougeRV Sunflow 40A MPPT Controller

  • 95 V protection limit scored, under the 100 V listed maximum
  • Tracking window: 2 V above battery voltage to 72 V
  • Temperature: −31 to 149°F (−35 to 65°C), IP34
• FeaturesRich Solar BRAVO 40 MPPT Controller: 6BougeRV Sunflow 40A MPPT Controller: 7 (higher)

  Rich Solar BRAVO 40 MPPT Controller

  • Built-in Bluetooth and custom lithium settings; sensor optional; no load output
  • Presets: eight battery types plus a custom mode
  • Missing: no load output, no networking between controllers
  • Enclosure: IP43 board, IP22 connection area, indoor use

  BougeRV Sunflow 40A MPPT Controller

  • Bluetooth, lithium profile, temperature sensor, 20 A load; no networking
  • Cold cut-off: stops lithium charging at 0°C, resumes at 2°C; off by default
  • Ports: TTL, RJ45 RS485 and an optional CAN port for RV-C

Same score

• CapacityRich Solar BRAVO 40 MPPT Controller: 6BougeRV Sunflow 40A MPPT Controller: 6

  Rich Solar BRAVO 40 MPPT Controller

  • 40 A maximum charging current, on the 40 to 49 A rung
  • Solar: 600 W recommended at 12 V, 1,200 W at 24 V

  BougeRV Sunflow 40A MPPT Controller

  • 40 A rated charging current, on the 40 to 49 A rung
  • Solar: up to 600 W at 12 V or 1200 W at 24 V
  • Setting: charge current set from 0 to 40 A
• Warranty & SupportRich Solar BRAVO 40 MPPT Controller: 1BougeRV Sunflow 40A MPPT Controller: 1

  Rich Solar BRAVO 40 MPPT Controller: 2 Years · BougeRV Sunflow 40A MPPT Controller: 1 Year.

  Rich Solar BRAVO 40 MPPT Controller

  • 2 years, prorated: full cover in year one, half in year two
  • Proration: year two covers 50 percent of replacement cost

  BougeRV Sunflow 40A MPPT Controller

  • 18 months, prorated after year one, one rung down
  • Policy: one 18-month term for all BougeRV controllers and inverters; replacements after year one at a pro-rata price

Not scored for either

• LifespanRich Solar BRAVO 40 MPPT Controller: —not scoredBougeRV Sunflow 40A MPPT Controller: —not scored
• ValueRich Solar BRAVO 40 MPPT Controller: —not scoredBougeRV Sunflow 40A MPPT Controller: —not scored

• RedditRich Solar BRAVO 40 MPPT Controller: 4BougeRV Sunflow 40A MPPT Controller: 5 (higher)

  The Rich Solar BRAVO 40 MPPT Controller reading covers the whole brand; the BougeRV Sunflow 40A MPPT Controller reading covers the whole brand.

  Rich Solar BRAVO 40 MPPT Controller

  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 Sunflow 40A MPPT Controller

  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 BRAVO 40 MPPT Controller: 5BougeRV Sunflow 40A MPPT Controller: 7 (higher)

  The Rich Solar BRAVO 40 MPPT Controller reading covers the whole brand; the BougeRV Sunflow 40A MPPT Controller reading covers its product line.

  Rich Solar BRAVO 40 MPPT Controller

  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 Sunflow 40A MPPT Controller

  Read the full summary

  • Scope: Love Your RV & Boat reviewed the Sunflow 60A, which shares this controller's manual, not this size itself
  • Use: he ran the 60A on 940 W of rooftop solar in his fifth wheel for two months without an issue, praising its fanless aluminum heat sink and screw terminals (July 2026)
  • Disclosure: he received the 60A free from BougeRV and links BougeRV and Amazon with affiliate links; his video repeats the written review and counts once
• YouTubeRich Solar BRAVO 40 MPPT Controller: 6BougeRV Sunflow 40A MPPT Controller: 6

  The Rich Solar BRAVO 40 MPPT Controller reading covers the whole brand; the BougeRV Sunflow 40A MPPT Controller reading covers the whole brand.

  Rich Solar BRAVO 40 MPPT Controller

  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 Sunflow 40A MPPT Controller

  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 BRAVO 40 MPPT Controller: 5BougeRV Sunflow 40A MPPT Controller: 6 (higher)

  The Rich Solar BRAVO 40 MPPT Controller reading covers its product line.

  Rich Solar BRAVO 40 MPPT Controller

  Read the full summary

  • Listing: Rich Solar's Amazon US file for the Bravo 40 and Bravo 50 (B0DHGKSM6M, sizes 40A and 50A) reads 3.8 from 4 ratings, 30 percent five-star, 45 percent four-star and 25 percent two-star (October 2026)
  • Scope: every rating shown is on the 40A size; the 50A size has none of its own
  • Owners: one praised the backlit display and app logging of amp-hours (March 2026); one faulted Rich Solar support (June 2025)

  BougeRV Sunflow 40A MPPT Controller

  Liked

  • Works great, per a recent owner
  • Charges and maintains LiFePO4 well in a fifth wheel

  Complaints

  • Does about 60 percent of what is advertised, per one owner

  Read the full summary

  • Rating: 4.3 from 125 ratings on BougeRV's own Amazon US listing for the 40A, 68 percent five-star and 5 percent one-star (October 2026)
  • Praise: a verified owner titled his review works great (October 2026); another, who builds mobile command centers, says it charges and maintains the LiFePO4 bank in his fifth wheel well
  • Shortfall: that same owner gave three stars, saying it does about 60 percent of what it is advertised to do (read October 2026)
  • Discount: BougeRV runs a page on its own site rewarding verified Amazon orders, so this pool scores one point lower