Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Missed This Deal? Get alerts when similar deals are posted.
  1. Deal Image
Item 1 of 4
  1. Deal Image
  2. Deal Image
  3. Deal Image
  4. Deal Image
Item 1 of 4
expirediconian | Staff posted Feb 4, 2026 2:36 PM

COSJM Portable Magnetic 320 LED Rechargeable 10,000 Lumen Work Light

$27

$80

66% off
Walmart
19 Comments
13.7K Views
Visit Walmart
Deal Details
ZHJC-US via Walmart has COSJM Portable Magnetic 320 LED Rechargeable 10,000 Lumen Work Light on sale for $26.99. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.

Details:
  • Long-lasting battery: 12,000mAh rechargeable; up to 77 hours in low mode; doubles as power bank via USB port
  • Ultra-bright output: 320 LEDs deliver 10,000 lumens; 4 modes (High, Medium, Low, Red Flash) + stepless dimming
  • Magnetic & portable: Strong magnet for hands-free attachment to metal surfaces; 180° rotating handle, hanging hook, tripod compatible
  • Rugged build: Impact-resistant ABS + tempered glass; IP65-rated (water, dust, rust resistant); sealed switch for durability
  • Versatile uses: Ideal for garages, workshops, construction, camping, emergencies, gardens, patios, fishing, and outdoor sites

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • Returns: Free 90-day returns

Original Post

Written by iconian | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
ZHJC-US via Walmart has COSJM Portable Magnetic 320 LED Rechargeable 10,000 Lumen Work Light on sale for $26.99. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.

Details:
  • Long-lasting battery: 12,000mAh rechargeable; up to 77 hours in low mode; doubles as power bank via USB port
  • Ultra-bright output: 320 LEDs deliver 10,000 lumens; 4 modes (High, Medium, Low, Red Flash) + stepless dimming
  • Magnetic & portable: Strong magnet for hands-free attachment to metal surfaces; 180° rotating handle, hanging hook, tripod compatible
  • Rugged build: Impact-resistant ABS + tempered glass; IP65-rated (water, dust, rust resistant); sealed switch for durability
  • Versatile uses: Ideal for garages, workshops, construction, camping, emergencies, gardens, patios, fishing, and outdoor sites

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • Returns: Free 90-day returns

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+27
Good Deal
Visit Walmart

Price Intelligence

Deal History

Sale Price
Slickdeal
  • $NaN
  • Today

Current Prices

Sold by Sale Price
Walmart$28.69

Top Comments

chaimav
377Comments
70Reputation
10,000 lumens, if actually legit, is insanely bright. I have a DeWalt one rated at 2,000 (I trust DeWalt's rating) that is plenty bright. https://a.co/d/03W6SMhV

Edit: I just did some back of the envelope math. A very high efficiency LED is about 200lm/w. 10,000 lm divided 200 lm/w = 50 watts.

The battery is 12 Ah. 12 Ah times 3.6V (typical li-ion voltage) 43 wh.

In other words, based on the advertised specs, it will last less than an hour on a full charge. And that is being very generous with the efficiency of the LEDs.
Go to Comment
LetsDoSlick
630Comments
58Reputation
Idk who is down voting you. Repping you just for that. And am gonna upvote every downvote.
Go to Comment
goyangyi1
1.5KComments
115Reputation
Problem with these knockoffs you cant trust the battery. At least Dewalt battery is superior and replaceable
Go to Comment

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

19 Comments

Sign up for a Slickdeals account to remove this ad.

Feb 5, 2026 3:07 AM
222 Comments
Joined Sep 2017
gsstricklandFeb 5, 2026 3:07 AM
222 Comments
Does this seem like a good deal on a decent product? Like throw in the car type thang?
2
Feb 5, 2026 3:37 AM
1.2K Comments
Joined Apr 2006
zmmnjFeb 5, 2026 3:37 AM
1.2K Comments
Another thing that I will probably never use...
1
1
Feb 5, 2026 11:09 AM
377 Comments
Joined Nov 2010
chaimavFeb 5, 2026 11:09 AM
377 Comments

Our community has rated this post as helpful. If you agree, why not thank chaimav

10,000 lumens, if actually legit, is insanely bright. I have a DeWalt one rated at 2,000 (I trust DeWalt's rating) that is plenty bright. https://a.co/d/03W6SMhV

Edit: I just did some back of the envelope math. A very high efficiency LED is about 200lm/w. 10,000 lm divided 200 lm/w = 50 watts.

The battery is 12 Ah. 12 Ah times 3.6V (typical li-ion voltage) 43 wh.

In other words, based on the advertised specs, it will last less than an hour on a full charge. And that is being very generous with the efficiency of the LEDs.
Last edited by chaimav February 5, 2026 at 04:38 AM.
6
2
Feb 5, 2026 11:13 AM
1.2K Comments
Joined Jan 2007
bamx2Feb 5, 2026 11:13 AM
1.2K Comments
Good price, but I want a hybrid model.
1
Feb 5, 2026 6:52 PM
1.5K Comments
Joined Apr 2015
goyangyi1Feb 5, 2026 6:52 PM
1.5K Comments
Quote from chaimav :
10,000 lumens, if actually legit, is insanely bright. I have a DeWalt one rated at 2,000 (I trust DeWalt's rating) that is plenty bright. https://a.co/d/03W6SMhV Edit: I just did some back of the envelope math. A very high efficiency LED is about 200lm/w. 10,000 lm divided 200 lm/w = 50 watts. The battery is 12 Ah. 12 Ah times 3.6V (typical li-ion voltage) 43 wh. In other words, based on the advertised specs, it will last less than an hour on a full charge. And that is being very generous with the efficiency of the LEDs.
Problem with these knockoffs you cant trust the battery. At least Dewalt battery is superior and replaceable
1
Feb 5, 2026 7:20 PM
377 Comments
Joined Nov 2010
chaimavFeb 5, 2026 7:20 PM
377 Comments
Quote from goyangyi1 :
Problem with these knockoffs you cant trust the battery. At least Dewalt battery is superior and replaceable
The battery is not very large, and ironically I trust the battery spec more than the lumens spec
Feb 5, 2026 7:22 PM
377 Comments
Joined Nov 2010
chaimavFeb 5, 2026 7:22 PM
377 Comments
Quote from gsstrickland :
Does this seem like a good deal on a decent product? Like throw in the car type thang?
Price for specs seems like a good deal. Specs vs reality - you feeling lucky?
2

Sign up for a Slickdeals account to remove this ad.

Feb 6, 2026 12:57 AM
113 Comments
Joined Nov 2005
newbeetle18tFeb 6, 2026 12:57 AM
113 Comments
Same thing here that has regular price of $32.99.

https://www.walmart.com/ip/12000mAh-LED-Rechargeable-Work-Light-10000LM-Portable-Camping-Lantern-Mag... [walmart.com]
Feb 7, 2026 5:21 AM
70 Comments
Joined Jan 2008
bappy29Feb 7, 2026 5:21 AM
70 Comments
Good deal. 10,000 lumen seems suspicious though...
Feb 7, 2026 5:58 AM
185 Comments
Joined Sep 2011
roy454ewbFeb 7, 2026 5:58 AM
185 Comments
Wow! If true, that's bright!
Pro
Feb 7, 2026 6:20 AM
1.9K Comments
Joined Jun 2017
ctcsd
Pro
Feb 7, 2026 6:20 AM
1.9K Comments

Our community has rated this post as helpful. If you agree, why not thank ctcsd

It goes without saying that this exact light is sold under different brand names and by several sellers with different names. Who knows if it's really just one seller. But it's certainly the same light. One example: https://www.walmart.com/ip/176846...b41acafdbe
Just don't expect similar performance to a name brand…
1
Feb 7, 2026 6:50 AM
630 Comments
Joined Aug 2012
LetsDoSlickFeb 7, 2026 6:50 AM
630 Comments
Quote from chaimav :
10,000 lumens, if actually legit, is insanely bright. I have a DeWalt one rated at 2,000 (I trust DeWalt's rating) that is plenty bright. https://a.co/d/03W6SMhV Edit: I just did some back of the envelope math. A very high efficiency LED is about 200lm/w. 10,000 lm divided 200 lm/w = 50 watts. The battery is 12 Ah. 12 Ah times 3.6V (typical li-ion voltage) 43 wh. In other words, based on the advertised specs, it will last less than an hour on a full charge. And that is being very generous with the efficiency of the LEDs.
Idk who is down voting you. Repping you just for that. And am gonna upvote every downvote.
Last edited by LetsDoSlick February 6, 2026 at 10:53 PM.
2
Feb 7, 2026 6:55 AM
630 Comments
Joined Aug 2012
LetsDoSlickFeb 7, 2026 6:55 AM
630 Comments
Quote from chaimav :
Price for specs seems like a good deal. Specs vs reality - you feeling lucky?
Assume you're never getting anywhere near 10k. Maybe 1k-2k which still isn't bad, plus the rechargeable battery.
Feb 7, 2026 4:01 PM
165 Comments
Joined Jun 2019
AirjagoFeb 7, 2026 4:01 PM
165 Comments
Quote from chaimav :
10,000 lumens, if actually legit, is insanely bright. I have a DeWalt one rated at 2,000 (I trust DeWalt's rating) that is plenty bright. https://a.co/d/03W6SMhV Edit: I just did some back of the envelope math. A very high efficiency LED is about 200lm/w. 10,000 lm divided 200 lm/w = 50 watts. The battery is 12 Ah. 12 Ah times 3.6V (typical li-ion voltage) 43 wh. In other words, based on the advertised specs, it will last less than an hour on a full charge. And that is being very generous with the efficiency of the LEDs.
Not sure if that's really relevant as there's no way this, or any other high output flashlight for that matter, will sustain their high/turbo mode for longer than 1 min. At 10K lumens this will likely throttle within 30s down to something more manageable to prevent overheating. Guessing normal use on low, med, or (throttled) high, this will last much longer than your estimate.

Sign up for a Slickdeals account to remove this ad.

Feb 7, 2026 4:31 PM
335 Comments
Joined Mar 2015
WaitWhaatFeb 7, 2026 4:31 PM
335 Comments
There's plenty of these on Amazon, if you have Prime (free shipping 😉). Product pictures are the same for all, no matter the "brand" , so I assume it's the same work light.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

Home & Home ImprovementLightingWalmart