Close
Amazon.com > Automotive > Lights & Lighting Accessories > Lighting Assemblies & Accessories > Driving, Fog & Spot Lights
Kohree E17 LED Bulb Microwave Oven Light Dimmable Stove Bulb Light 4W Appliance Bulb Daylight White...
More product info
From Kohree
This report was last updated 12/5/2019.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
View/Edit Adjustment
Jump to Report Card
Report Info:
Note: While Amazon.com claims 354 Ratings, we counted 2,010 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".
Report Card
Pass Overall Grade
FAIL Rating Trend
FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Word Count Comparison
WARN Deleted Reviews
WARN Reviewer Participation
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Ease
PASS Incentivized Reviews
Most Trusted Reviews
They are ok. Nice n bright n a decent throw. ... [Go to full review]
Oct 1, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.9)
Least Trusted Reviews
It fit, it works, can't tell the difference, (so far, ... [Go to full review]
Jul 4, 2016
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (15 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Monogamist (105 reviews for this brand; avg rating: 4.2)
- Overrepresented Participation (posted 24 Reviews)
- Critical Reviewer (avg. rating: 3.9)
Analysis Details
Fail Rating Trend
-
- 16%
- Created over 56 days
We counted 2,010 reviews for this product over the span of 5,028 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 56 days exceeding this threshold:In total, we found that 315 reviews were created on just 56 days. The reviews on these high volume days have rated this product an average of 4.5 while reviews from other days have rated this product an average of 4.3. 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.
Fail Brand Repeats
Brand Loyalists
78 of the 2,010 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Brand Monogamists
76 of the 2,010 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.
Fail Suspicious Reviewers
One-Hit Wonders
208 of the 2,010 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
638 of the 2,010 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.
Single-Day Reviewers
54 of the 2,010 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.7 while all other reviewers 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.
Fail Word Count Comparison
-
- 27%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 552 reviews (or 27%) are within an overrepresented word count group. These reviews have rated this product an average of 4.6, while all other reviews have rated this product an average of 4.3. 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 71 deleted Reviews for this product, with an average rating of 4.8. 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 Reviewer Participation
-
- 57%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1148 reviewers (or 57%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
231 of the 2,010 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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.
Pass Phrase Repetition
-
- 0%
- Used substantial repetitive phrases
0 of the 2,010 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.
Read more about our Phrase Repetition test.
Read more about our Phrase Repetition test.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
1% also reviewed:
Certified Refurbished Fire TV Stick with Alexa... by Amazon Renewed
1% also reviewed:
Echo Dot (2nd Generation) - Smart speaker with... by Amazon
69 of the 2,010 reviewers have substantial overlapping product review history. 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 4.3, while the average ease score for reviewers in this category is 4.3.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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.
20 of the 2,010 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.