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HQST 2 Packs 100 Watt 12 Volt Polycrystalline Solar Panel with MC4 Connectors High Efficiency...
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This report was last updated 7/31/2021.
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Report Info:
Note: While Amazon.com claims 948 Ratings, we counted 873 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Solar Panels with authentic reviews:
Report Card
Warn Overall Grade
FAIL Unverified Purchases
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Suspicious Reviewers
PASS Rating Trend
PASS Word Count Comparison
PASS Phrase Repetition
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
The panel arrive on time , the packaging was minimal ... [Go to full review]
Dec 29, 2020
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
The panels arrive mostly intact but due to very poor ... [Go to full review]
Aug 18, 2016
0%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 11 Reviews)
- Critical Reviewer (avg. rating: 2.0)
Analysis Details
Fail Unverified Purchases
40 of the 873 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.6 while the verified purchasers have rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
4% also reviewed:
Sun YOBA 5 Pairs of Male/ Female Solar Panel... by Sun YOBA
3% also reviewed:
Signstek Y Branch MC4 Parallel Connector Adapter... by Signstek
2% also reviewed:
ALLPOWERS 20A Solar Charger Controller Solar... by ALLPOWERS
2% also reviewed:
bayite DC 6.5-100V 0-100A LCD Display Digital... by bayite
2% also reviewed:
Mohoo Charge Controller Solar Charge Regulator... by MOHOO
2% also reviewed:
Renogy 100 Watt 12 Volt Monocrystalline Solar... by Renogy
2% also reviewed:
Item Unavailable by
Does not include products
from the same brand
from the same brand
140 of the 873 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Warn Deleted Reviews
We discovered a total of 16 deleted Reviews for this product, with an average rating of 4.3. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Warn Suspicious Reviewers
Take-Back Reviewers
363 of the 873 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Pass Rating Trend
-
- 1%
- Created over 2 days
We counted 873 reviews for this product over the span of 2,072 days, an average of 0.4 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 4 or fewer reviews on any given day.
However, we see the following 2 days exceeding this threshold:In total, we found that 10 reviews were created on just 2 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Word Count Comparison
-
- 0%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
Read more about our Word Count Comparison test.
Pass Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
Show MoreShow Less
30 reviews
(4.2/5)
(4.2/5)
28 reviews
(4.3/5)
(4.3/5)
10 reviews
(4.3/5)
(4.3/5)
6 reviews
(5.0/5)
(5.0/5)
14 reviews
(3.9/5)
(3.9/5)
11 reviews
(4.9/5)
(4.9/5)
Common Phrases in Titles:
16 reviews
(4.9/5)
(4.9/5)
23 reviews
(4.5/5)
(4.5/5)
6 reviews
(4.5/5)
(4.5/5)
33 of the 873 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Reviewer Participation
-
- 29%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 256 reviewers (or 29%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
44 of the 873 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 873 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.