SLONIK Headlamp Rechargeable - 1000 Lumen LED USB Rechargeable Headlight - IPX4 Waterproof Head Lamp with Bright 60 ft Flashlight Beam - Hiking & Outdoor Camping Gear, Black - LED Headlamp

First Misleading Reviews - unfortunately well intentioned reviewers misinterpret technical spec documents and make mistakes that tear apart good products like this one. This is in response to Kimberly's Review of the specs included with the SLONIK S25 model 1,000 Lumen, dual LED Headlamp, and the product itself & the packaging, accessories , etc.. First I can understand and even empathize with her frustration as to why more electronics aren't made in USA and the relatively lower cost of products made in Asia, some of those products/companies are not reliable & I too have found incorrect or exaggerated specs. BUT in this case - I found SLONIK to be Extremely reliable, customer service oriented, products r very well made, excellent craftsmanship, name brand parts & reliable operation - their instructions are EXCELLENT, clear & concise including warranty information, specs & contact info. Top 10% IMHO as compared to similar electronics I purchased on Amazon in past 10 years. That said - the "False Advertising Claim" you made re: the pair of CREE X-Lamp model XP-G2 LEDs (Proudly stated, BTW, that the LEDs are Made in America!! - SLONIK's primary selling point!).. The Flux output you refer too on Cree's website (pages 6-14) is clearly stated as the "Minimum Luminous Flux @ 85 C & (more importantly!!) @ 350 mA". - If you go to page 17, you'll find a Table - "Relative Flux vs Current" (@ 85 C) for both the Standard and High Efficacy versions of this same LED - the Standard version can handle up to 1500 mAh batteries, the Hi-Efficacy up to 2000 mAh. At 350 mAh - we see it intersects @ 100% - just like you said - if battery was a 3.7V @ 350mAh then Flux (lumens) would be 100% x 164 lm = 164 lumens per LED x 2= 328 lm output from both LEDs. BUT we have a 2200mAh battery - look at the graph - @ 1000mAh it is 250% x164 = 410 each LED (820 lm total) @ 1500 mAh (max for standard Cree XPG-2) = 340% x 164 = 557 lm x 2 LEDs = 1114 lm Total - MORE than Spec claims and well within 2200mah/3.7V battery rating - spec claims that at this level (assuming it is the 100% mode) - you'll get 4 hours before recharge (battery dissipates 8.14 watts/hour, or max of 2.2 hours running full load, @ 1500mah/3.7V load - battery will dissipate 5.55 Watts/hr. My quick math in my head says we should get around 3.5 hours of battery at 100% brightness setting, spec says "4 hours" at 100% running at 10 watts (each LED is rated at max 5V/1A or 5 Watts x 2 = 10 Watts). Anyway - according to Slonik's spec and Cree's Data Sheet for the LED & battery capacity chart (assuming all is perfect - NEVER IS) the Lumens STATED in SLONIK's Spec = 1000 lm for 2 x CREE XPG-2 Standard Version is CORRECT as math and Specs say output @ 1500mah = 1114 lm - Close enough - Color Temp - Depends which model CREE they used - I would guess in Daylight/Cool White range where LED has higher Flux in that 4200-8000 Kelvin range rather than warm white below 4000 Kelvin range.In closing - after about 6 weeks using this light almost everyday with my head and light stuck in 9.5" ceiling holes cut for 4 new Dolby Atmos speakers and new 6" smart Recessed lights (x 8). The storage case, instructions and battery are IMO high end for any price-range, charge cable and integrated mini-USB port - is flimsy - not because SLONIK is bad - that mini USB is awful in general it is unreliable and should be discontinued on any equipment (cell phones included) - it's garbage and a bad idea - if u r careful with it it's fine - get a higher quality cable - I have a spare external 18650 floor charger - I use it for my LED flashlights - BTW flat top battery that SLONIK uses has no connection troubles in my external charge (no electrical contact issues because of small positive nipple on the battery - nipple is fine just like it is). I typically set headlamp on lowest or 2nd lowest setting for my purposes - electronics repair, construction projects, outdoor dark night activities - sneaking around at night & BBQ-ing in the dark. Have not found a practical use for "Full Power" Yet - but man is it bright - and the combo "Spot" & "Flood" HQ lenses are excellent. Charges fully in less than 90 minutes - my only minor complaint is it does get warm if u wear it directly on exposed skin - like my skull/forehead - need to turn it off between "jobs".Band is very soft & comfortable, easy to adjust.In summary, the negative review re: Lumen Output was a simple MISUNDERSTANDING of how CREE's LED Flux output is calculated - & I think some folks paid lots of $$$$ for other "BRANDS" that are same as this & R looking for a "Flaw" in this product that just isn't there.

I am a professional mechanic who was looking for a less expensive option for a headlamp beside those for sale on the tool trucks, so I tried this one. This has been my go-to headlamp because it has a wide range of brightness settings and the battery lasts a pretty long time (on lower brightness settings). I was alternating between this light and a tool truck light, but this one has become my favorite because it is more reliable, lasts longer on a charge and those brightness settings - which vary from really bright to fairly dim, but bright enough for long term use to extend the battery life. The best compliment I can give to this light is that I bought a second light so that I can run one light until the battery runs out, then grab the charged one and get back to work while the other one is charging.Another feature that is nice is that it is small enough to maneuver your head in tight areas (under the dash) and not have to worry about bumping a large battery pack.If you need both of your hands and a light to illuminate your work area, you can't go wrong with this headlamp.

First impressions are that I like it. Instructions are adequate. When I first turned it on it had defaulted to the brightest setting (of 6 brightness settings). Note that it takes an 18650 battery. I have included pictures with it on my head around a baseball cap so you can see that it is fairly wide. It seams well made and rugged, and has a weight to match. If, like me, you’re used to the smaller plastic housing rechargeable headlamps or even ones that take a couple of AAA batteries, you will note the difference in weight. If you know these things ahead of time, then yes, I recommend this headlamp. I like the simple rotating angle adjustment. I use it when working on things in low light or indirect lighting, and the 6 brightness settings make being able to see what I’m looking at a breeze. I may look for one that takes a CR123A or similar size battery, but this one will do.

I've purchased two Slonik headlamps and they've been awesome. So much brighter than previous headlamps! Battery life has repeatedly been good and I like the rechargeable battery. However, after 3 years the failure mode has been that the plastic holding the light to the headband has broken, so the light won't stay on the headband anymore. On my 1 year older model (2021) that plastic still works and the headband has just become stretched out and white.Overall worked really well for several years, though!