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frontpage Posted by jeffholiday • Oct 26, 2024
frontpage Posted by jeffholiday • Oct 26, 2024

Sofirn H25LR (D25LR) White / Deep Red LED Rechargeable Headlamp w/ 18650 Battery

+ Free S/H on $29+

$16

$32

50% off
Sofirn
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Deal Details
Sofirn has Sofirn H25LR (D25LR) White / 660nm Deep Red LED Rechargeable Headlamp w/ 18650 Battery on sale for $15.99. Shipping is free on $29+ orders.

Thanks to Community Member jeffholiday for finding this deal.

Features:
  • The D25LR headlamp utilizes dual LED Emitters. One of which is the LH351D 5000K CRI 90 High for a nice comfortable white beam. The other LED Emitter is the SST20-DR Red LED, which produces red light in the wavelength of 660nms which helps to protect your night vision.
  • The D25LR is powered by a 18650 battery with a 50,000 hours lifespan. It also has a built-in USB C charging port, which permits fast and convenient charging saving you the trouble of removing the battery.
  • One Hand Operation: One switch controls Two LEDs.
  • The D25LR Headlamp is constructed from aircraft grade aluminum, with a hard-anodized anti-abrasive finish. The rechargeable headlamp is built to endure rough handling.
  • IPX6 waterproof rating.
  • LED headlamp emits a deep red light that may help improve declining eyesight.
  • Weighting 80g (without the battery) makes it comfortable to wear for hours at a time. It has an easily adjustable headband for a custom fit for hands-free illumination.
  • 4 Brightness Levels (White Light LED Emitter): Moon-Low-Medium-High. At full brightness, it produces a max output of 500 lm for long distance searching. On a lower setting, it is perfect for close-up illumination.
  • When charging, the battery indicator light glows red. After reaching Full Charge, the indicator light glows green.
  • Mode Memory

Editor's Notes

Written by SaltyOne | Staff
  • This beats an April Frontpage deal for similar headlamps.
  • Refer to the original post & forum comments for additional details & discussion.

Original Post

Written by jeffholiday
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Sofirn has Sofirn H25LR (D25LR) White / 660nm Deep Red LED Rechargeable Headlamp w/ 18650 Battery on sale for $15.99. Shipping is free on $29+ orders.

Thanks to Community Member jeffholiday for finding this deal.

Features:
  • The D25LR headlamp utilizes dual LED Emitters. One of which is the LH351D 5000K CRI 90 High for a nice comfortable white beam. The other LED Emitter is the SST20-DR Red LED, which produces red light in the wavelength of 660nms which helps to protect your night vision.
  • The D25LR is powered by a 18650 battery with a 50,000 hours lifespan. It also has a built-in USB C charging port, which permits fast and convenient charging saving you the trouble of removing the battery.
  • One Hand Operation: One switch controls Two LEDs.
  • The D25LR Headlamp is constructed from aircraft grade aluminum, with a hard-anodized anti-abrasive finish. The rechargeable headlamp is built to endure rough handling.
  • IPX6 waterproof rating.
  • LED headlamp emits a deep red light that may help improve declining eyesight.
  • Weighting 80g (without the battery) makes it comfortable to wear for hours at a time. It has an easily adjustable headband for a custom fit for hands-free illumination.
  • 4 Brightness Levels (White Light LED Emitter): Moon-Low-Medium-High. At full brightness, it produces a max output of 500 lm for long distance searching. On a lower setting, it is perfect for close-up illumination.
  • When charging, the battery indicator light glows red. After reaching Full Charge, the indicator light glows green.
  • Mode Memory

Editor's Notes

Written by SaltyOne | Staff
  • This beats an April Frontpage deal for similar headlamps.
  • Refer to the original post & forum comments for additional details & discussion.

Original Post

Written by jeffholiday

Community Voting

Deal Score
+46
Good Deal
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Top Comments

500 lumen is perfectly fine depending on use. You don't want 1000 lumen when you're under a car or working on a fuse box. This h25lr headlamp has the Samsung lh351d emitter which is a flood light not a throwy emitter plus it's high cri so colors are not washed out.
Everyone seems to be missing the point on these. They're deep red lights, these are for specific tasks like preserving night vision. I use red lamps for walking into and out of the woods while hunting, animals are far less sensitive to red and green spectrum lighting. They're great for fishing at night, they attract about 10x less bugs than a white light.
Those don't have the red light which is the main feature of the sofirn.

92 Comments

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Oct 27, 2024
564 Posts
Joined Nov 2010
Oct 27, 2024
US_Ranger
Oct 27, 2024
564 Posts
Quote from TheOldDude :
If it's on my head it won't blind me.
Yes it will.

White light constricts your pupils so when you turn the lamp off, you won't be able to see in the dark until your pupils dilate to pick up whatever visible light is available from nature.

Red light doesn't have the same effect so you retain your night vision when you turn your head lamp off.
Oct 27, 2024
72 Posts
Joined Nov 2021
Oct 27, 2024
NewDealsAcct
Oct 27, 2024
72 Posts
Quote from J1336 :
this one has 160,000 LM and its $27 with a big whopper 25% off and says for me to sign in for 20% off 20 items if i sign in but i wasnt born yesterday so i will log in later when im on my vm thats double isolated and separated from my home network so there wont be any funny business with my iot fridge or air fryer or skbidi toilet. maybe one of you can test out what that 20% off 20 really gets ya but if you like me and not so sure cause you dont know if that means its 1% off 1 or you gotta buy 20 or you want to keep your smart toilet free of haxors then thas still a great deal for lots of LMs probably enough to light up a baseball field for a 1am game with your kids


https://www.amazon.com/dp/B0CWPBH...p13NParams
XD the 13 hrs of high mode on 10,500 mAh is a giveaway that the specs are super sus and not skibidi lol
Oct 28, 2024
1,588 Posts
Joined Oct 2006
Oct 28, 2024
revere04
Oct 28, 2024
1,588 Posts
Quote from Strouty :
I have this headlamp - at noted - the red lamp is perfect for night activities - I use it for astrophotography, hiking, etc.
Pros - Both white & red lights are bright and are dimmable. I don't think I would ever need a brighter headlamp. I've had no problems with battery life. You can easily angle the light up or down.
Cons- It is pretty bulky, but not uncomfortable to wear. I wouldn't use this for night running, for instance. It is rechargeable - which is a mixed blessing. If you run out of battery at the wrong time - you are out of luck. I usually pack a back-up AA powered headlamp while night hiking for safety.
Would this be good for metal detecting at night, being able to look down while digging on swinging the detector
Oct 28, 2024
6,471 Posts
Joined Jan 2009
Oct 28, 2024
nolf66
Oct 28, 2024
6,471 Posts
Quote from Strouty :
I have this headlamp - at noted - the red lamp is perfect for night activities - I use it for astrophotography, hiking, etc.
Pros - Both white & red lights are bright and are dimmable. I don't think I would ever need a brighter headlamp. I've had no problems with battery life. You can easily angle the light up or down.
Cons- It is pretty bulky, but not uncomfortable to wear. I wouldn't use this for night running, for instance. It is rechargeable - which is a mixed blessing. If you run out of battery at the wrong time - you are out of luck. I usually pack a back-up AA powered headlamp while night hiking for safety.
Did you ever think just to bring a charged extra battery or 2?
2
Oct 28, 2024
1,849 Posts
Joined Mar 2009
Oct 28, 2024
TheOldDude
Oct 28, 2024
1,849 Posts
Quote from US_Ranger :
Yes it will.

White light constricts your pupils so when you turn the lamp off, you won't be able to see in the dark until your pupils dilate to pick up whatever visible light is available from nature.

Red light doesn't have the same effect so you retain your night vision when you turn your head lamp off.
Well, I keep the light on until I don't need any light, so this is a non issue.
4
Oct 28, 2024
9,572 Posts
Joined Oct 2008
Oct 28, 2024
Danzilla
Oct 28, 2024
9,572 Posts
Quote from J1336 :
this one has 160,000 LM and its $27 with a big whopper 25% off and says for me to sign in for 20% off 20 items if i sign in but i wasnt born yesterday so i will log in later when im on my vm thats double isolated and separated from my home network so there wont be any funny business with my iot fridge or air fryer or skbidi toilet. maybe one of you can test out what that 20% off 20 really gets ya but if you like me and not so sure cause you dont know if that means its 1% off 1 or you gotta buy 20 or you want to keep your smart toilet free of haxors then thas still a great deal for lots of LMs probably enough to light up a baseball field for a 1am game with your kids


https://www.amazon.com/dp/B0CWPBH...p13NParams
Dead giveaway it's garbage when they lie like that about it's abilities. Most of the people giving good reviews don't seem to know what a good light should be like and are just happy it works.
Oct 28, 2024
3,467 Posts
Joined Jul 2013
Oct 28, 2024
Quikfinger
Oct 28, 2024
3,467 Posts
Is it safe to wear a 18650 lithium battery such as the one included with this headlamp on your head?? Ive had 18650's explode before.. A huge concern for me.

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Oct 28, 2024
9,572 Posts
Joined Oct 2008
Oct 28, 2024
Danzilla
Oct 28, 2024
9,572 Posts
Quote from Quikfinger :
Is it safe to wear a 18650 lithium battery such as the one included with this headlamp on your head?? Ive had 18650's explode before.. A huge concern for me.
They pretty much never actually 'explode', like bang! If they do fail catastrophically, it's usually more like a hot burning flare. And that's usually only when it's been damaged in some way or very poorly made. Put it simply, they've been in laptops by the millions for decade with little to no problems.
Last edited by Danzilla October 27, 2024 at 10:00 PM.
Oct 28, 2024
2,490 Posts
Joined Dec 2010
Oct 28, 2024
slickernsnot
Oct 28, 2024
2,490 Posts
Quote from megablank :
500 can be fine for basic tasks where you don't want to blind yourself but the energizer x1000 type heavily diffused is better for cheaper
https://www.amazon.com/dp/B0BF5XZMS9
That's a great one. But no red, sadly.
1
1
Oct 28, 2024
6,288 Posts
Joined Dec 2006

This comment has been rated as unhelpful by Slickdeals users.

Oct 28, 2024
6,288 Posts
Joined Dec 2006
Oct 28, 2024
megablank
Oct 28, 2024
6,288 Posts
Quote from Quikfinger :
Is it safe to wear a 18650 lithium battery such as the one included with this headlamp on your head?? Ive had 18650's explode before.. A huge concern for me.
Its only really an issue with multiple cell units where one can back feed the other, and if they are unprotected by any protection circuit, and even then it would just gas out.

The energizer seems to come with a protected cell, there's an extra ribbon cable connection from top to bottom for the end cap protection circuit to prevent over discharge.
https://www.nkon.nl/fr/blog/prote...edbattery/
1
Oct 28, 2024
239 Posts
Joined Dec 2009
Oct 28, 2024
Mr.doom
Oct 28, 2024
239 Posts
Quote from Thatsnotmyname16 :
Sub $20
https://a.co/d/9860POy

Favorite headlamp to date:
https://a.co/d/3hpfxVN
This one is heavier with the 21700 battery but lasts a long time. I picked up 2 spare batteries for $10 each and can use non-stop for over 10 hours at the 2nd highest setting
Like almost all the high output lights The Thrunlite makes 700 lumin for 1 min then steps down to under 200 lumins for the remainder of the run time https://zeroair.org/wp-content/up...-cw-54.png
The 18650 battery in the Sofrin is twice the capacity of the 14500 in the Thurnite.

The Sofrin HS41 with the 21700 battery you linked to is heavier and not much brighter than the H25 once it thermals out of turbo mode. https://zeroair.org/2023/08/17/so...mp-review/

Lights that can actually put out megalumins of light for more than a minute or two need thermal management & multiple emitters and the bigger battery systems.
My "5000" lumin bike light cuts power to about 1200 lumins after 5 min.

The Sofrin H25 has a really bright red light that I am going to love for fatbiking this winter. Only negative is the micro USB charge port but I charge my 18650's on a external unit.
Last edited by Mr.doom October 28, 2024 at 05:13 AM.
Oct 28, 2024
368 Posts
Joined Feb 2016
Oct 28, 2024
Edbmsm
Oct 28, 2024
368 Posts
Quote from US_Ranger :
Yes it will.

White light constricts your pupils so when you turn the lamp off, you won't be able to see in the dark until your pupils dilate to pick up whatever visible light is available from nature.

Red light doesn't have the same effect so you retain your night vision when you turn your head lamp off.
Yep, your pupils stay dilated in the red spectrum, hence can still see the majority of your field of view (instead of just the white beam/flood section). Think moonlight or city-scape or stargazing.

Put it in another way- you won't realize that the red lasers burnt a hole on your retina until it's too late, whereas green lasers seems so bright (for the same power output), so you look away, plus the human reflex closes pupils.

Edit: ... and I meant to agree on the safety advantage of red-light - not having to experience the temporary loss of sight from the human delay in re-dialating pupils (when white headlight turned off).
Last edited by Edbmsm October 28, 2024 at 03:04 AM.
Oct 28, 2024
368 Posts
Joined Feb 2016
Oct 28, 2024
Edbmsm
Oct 28, 2024
368 Posts
Quote from Danzilla :
They pretty much never actually 'explode', like bang! If they do fail catastrophically, it's usually more like a hot burning flare. And that's usually only when it's been damaged in some way or very poorly made. Put it simply, they've been in laptops by the millions for decade with little to no problems.
Yes, cells (18650, etc) were considered much safer than pouch (7000+ cells strong on Tesla's, because of the beating they can take- charge-balance that).

The shift to polymer really kicked in when Sony managed to make un-safe cells in 2006. As more folks abandoned luggables and bought lighter "notebooks", polymers are moldable to use all voids to gain power/density in the pricey tiers.

I hear the new pouches (for solar storage) have even safer chemistry and discharge 180A (15C), but those stuck in the (near) past that delt with bulging-pack fire hazards ... just need to keep an eye (and two redundant sensors) on these new-fangled foil bags.
Last edited by Edbmsm October 28, 2024 at 03:49 AM.

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Oct 28, 2024
10,826 Posts
Joined Aug 2010
Oct 28, 2024
J03
Oct 28, 2024
10,826 Posts
Quote from SlickRoom242 :
Agree. 500 lumens is just not enough light to get meaningful work done.
I use this Energizer headlamp (https://www.amazon.com/gp/product/B0BF5XZMS9) with a 400lm brightest setting for mowing my lawn at night and it's more than enough light to get the job done. In fact sometimes to avoid attracting too many bugs I'll step it down to the medium level. It has a 'turbo' mode that puts out an impressive 1000lm but it's only for a minute or so and the lamp gets hot. There is no way you're cranking out 1000lm in a headlamp full time nor is it necessary.
1

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