Skip to content

Got a bigger question? Ask the DealTeacher

Menu

We may earn a commission when you buy through our links. It never changes a grade.

ALLPOWERSPrice checked Oct 31 at 1:20 PM ET

ALLPOWERS 400W Solar Panel

$299$369

Buy now

Buy at ALLPOWERS

Price alert: email me below $299

400W foldable monocrystalline panel, SP037

ALLPOWERS 400W Solar Panel

Yes. At $299 at ALLPOWERS, the ALLPOWERS 400W Solar Panel is a great deal: we gave it an A+ (lowest price we've recorded).

A+ means this is the lowest price we've ever recorded, backed by 6+ months of price history.

DealTeacher's grade for the ALLPOWERS 400W Solar Panel: A+ (Buy now). It's $299 at ALLPOWERS, down from a $369 tag (19% off). Price last checked Oct 31, 2026.

Posted · Updated

Lowest recorded: $299 on at ALLPOWERS.

The lesson

$299 is the lowest price ALLPOWERS has charged for this panel on any date we have. It mostly sold for $369 through 2025 and was $349.99 in June. The $699 compare-at tag on the page is not a price it has really sold for.

Price history

$299 ties the lowest of 6 dated prices we've recorded since Dec 7, 2024 (also $299 on Oct 29, 2026 at Amazon). Typical price: $369.

Price history from Dec 7, 2024 to Oct 29, 2026
Price history from Dec 7, 2024 to Oct 29, 2026Dec 7, 2024: $399 at ALLPOWERSMar 18, 2025: $369 at ALLPOWERSJul 17, 2025: $369 at ALLPOWERSJun 15, 2026: $349.99 at ALLPOWERSOct 28, 2026: $299 at ALLPOWERSOct 29, 2026: $299 at Amazon

Typical price: $312 to $369, the middle half of the 6 prices we recorded.

The $369 'was' price does show up in this history, so that part checks out.

Every dated price we have for this exact model
DatePriceStoreSource
$399ALLPOWERSArchived store page
$369ALLPOWERSArchived store page
$369ALLPOWERSArchived store page
$349.99ALLPOWERSArchived store page
$299ALLPOWERSStore page, checked by us
$299AmazonStore page, checked by us

Sources: store pages we checked, archived copies of store pages (Internet Archive), a public price tracker, public deal posts, and our own price records. Only prices for this exact model, new condition, from the last two years.

ALLPOWERS store prices from archived product pages, April 2023 to June 2026.

Is the ALLPOWERS SP037 a good deal? Every recorded price and the price to wait for

Already bought it? See if you overpaid, and if you can still get a price adjustment

Grade history

  1. First graded at $299ALLPOWERS
  2. Raised from A to A+ at $299ALLPOWERS

Every row is a grade we actually published. We don't fill in the gaps.

More Home & Outdoor Power deals we graded

Get the Daily Lesson

The best graded deals daily at 7 AM ET, including Black Friday early deals.

Black Friday Early-Deals List: only the deals we've verified and graded A or B, starting with the early deals live now and adding store sales as they're announced.

Free. One email a day at most. Unsubscribe anytime. Privacy.