Harbor Freight prices › Lawn & Garden › Outdoor Living
THUNDERBOLT SOLARitem 57970
9 Watt Foldable Solar Panel
Base price$39.99
Members' price$39.99
Everyone else$39.99
Benton Harbor, MI shelf$39.99same shelf price as online
Hasn't budged from $39.99 in 722 days. This price is load-bearing; waiting won't move it.
- It went 13% off ($34.99) in late October two years ago. One sale is a hint, not a pattern.
Hasn't budged from $39.99 in 181 days. This price is load-bearing; waiting won't move it.
- It went 13% off ($34.99) in late October two years ago. One sale is a hint, not a pattern.
Price alert
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The numbers
- Today
- $39.99
- Usual price
- $39.99
- 90-day low
- $39.99
- Lowest tracked
- $34.99
- Goal Zero Nomad equivalent
- $99.95
- Today, members
- $39.99
- Usual for members
- $39.99
- 90-day low
- $39.99
- Lowest tracked
- $34.99
- Goal Zero Nomad equivalent
- $99.95
Nov 6, 2024
May 1, 2026
Prices by store
Harbor Freight prices some items differently by store, and once you pick a store its site shows that store's shelf price. These come from contributors who share their store; the main price above is the base price, the one HF shows before you pick a store.
| Store | Today | Usually |
|---|---|---|
| Benton Harbor, MI store 583, checked Nov 2, 2026 | $39.99 | $39.99 |
Price history
Best price for anyoneInside Track Club priceRegular price
Every price change
| When | Price | Members | Why |
|---|---|---|---|
| May 2, 2026 to Oct 29, 2026181 days, checked 2x | $39.99 | Regular price | |
| Apr 4, 2026 to May 1, 202628 days, checked 0x | $39.99 | $34.99 | Regular price |
| Feb 27, 2026 to Apr 3, 202636 days, checked 0x | $39.99 | Regular price | |
| Jan 30, 2026 to Feb 26, 202628 days, checked 0x | $39.99 | $34.99 | Regular price |
| Nov 7, 2024 to Jan 29, 2026449 days, checked 0x | $39.99 | Regular price | |
| Oct 24, 2024 to Nov 6, 202414 days, checked 0x | $34.9913% off | Coupon | |
| Mar 17, 2024 to Oct 23, 2024221 days, checked 1x | $39.99 | Regular price | |
| Jul 23, 2022 to Mar 16, 2024603 days, checked 0x | $49.99 | Regular price | |
| Jun 25, 2022 to Jul 22, 202228 days, checked 0x | $49.99 | $39.99 | Regular price |
| Jun 10, 2022 to Jun 24, 202215 days, checked 1x | $49.99 | Regular price | |
| Jun 5, 2022 to Jun 9, 20225 days, checked 1x | $54.99 | Regular price |
Tracking since Oct 17, 2026. Last checked Oct 22, 2026.