Welcome to 2020 and for my first review of the year I have the new Klarus G15 a small form factor 21700 EDC style light capable of upto 4000 lumens on Turbo from it’s Cree XHP 70.2 LED. Thanks to Klarus for sending me this early sample for review and evaluation.
Youtube Version of this Review:
Social Media Reminder
If you like this video please make sure your subscribed with the notification bell turned on, and you can check out my Instagram and Facebook pages.
Join the Facebook Page: https://www.facebook.com/LiquidretroReviews/
Follow me on Instagram: https://www.instagram.com/liquidretro/
Packaging and Accessories
Packaging here is a nice high quality cardboard box with a picture of the light in front being part of the model number G15. The sides list the battery, capacity, and charging speed, and a highlight of the specs, including the 5 year warranty. On the back you have a more detailed spec chart and list of features. The light is IPX 8 water rated.
Included accessories are the Light itself, Klarus Branded 5000mAh button top protected 21700 battery. It’s listed as a 15A capable battery. The battery itself is long coming in at 74.7mm. Also included is a spare oring, Klarus branded lanyard, Felt pouch, manual and MicroUSB charging cable.
Construction
The light is made from aluminum and anodized a smooth fairly glossy black. The tail is flat allowing for the light to tail stand, but it’s non magnetic. The tail has been cut on the side to allow for the lanyard to attach. The body and tail are all one piece, with the long clip only attaching on the rear section. It allows for deep carry and it’s fairly stiff. The milling on the body tube to provide texture looks like the profile for an involute gear and then has 6 flats milled into the light. I like the pattern here, it’s a little different, provides good grip without being too aggressive. The flashlight only disconnects between the head and the body. The threads are raw aluminum, and beefy square cut with grease.
The head features the same button we saw on ST15R and XT21X in 2019. It’s a silicone button with an illuminated sliver of light around it that indicates battery status and goes Green/Red/Yellow. There is minimal milling on the sides for heat dissipation. Opposite the button is the flush fitting silicone port to protect the MicroUSB charging port. It’s at a standard depth and there is plenty of clearance for larger cables to fit. The head has minimal branding and labels on it, and light bronze color. The front bezel is smooth, and it looks like it will unscrew with the right tool. The lens is anti reflective coated glass, surrounded by a deep orange peel reflector with the large XHP70.2 LED at the center.
Size & Weight
I measured overall length of the Klarus G15 at 122mm, maximum diameter in the head at 27.5mm between the button and the charging port, and minimum diameter on the body at 23.24 between flats. Weight with the included battery and clip is 142.1g.
Looking through my light collection I don’t have a ton of 21700 sized lights that are super comparable here. Lights that I have that are similar are most often using an 18650 or end up being larger. I settled on comparing it to the Olight M2R Pro since they use the same battery and are physically similar. The Olight is a bit longer here, and heavier and is more tactical in nature. It’s also more of a thrower where the G15 is more about flood.
LED | Beamshot | Runtime
The Klarus G15 is using the Cree XHP 70.2 LED in a cool white 6500k tint. Being a 70.2 LED there is tint shift across the beam but it’s not as dramatic as I have seen from a few other lights. There is a slight increase in intensity in the center but this is more of a flood style light then a thrower. The spill is very wide and fades into nothing without a cutoff.
Mode Spacing here as you can see in the table below is ok but could be improved. There is quite a bit of difference to the eye between medium at 500 lumens and high at 2000 lumens. An additional mode in between would be nice. That said to the eye here is a difference between high at 2000 lumens and Turbo at 4000 but it’s not nearly as much as you might think.
Brightness Outputs from Klarus
| Specs | Turbo | High | Med | Low | Moonlight | Strobe | Beacon | SOS |
| Brightness | 4000
lumens |
2000
lumens |
500
lumens |
100
lumens |
1
lumens |
4000
lumens |
500
lumens |
500
lumens |
| Runtime | 1.2
hours |
1.5
hours |
6
hours |
28
hours |
200
hours |
2
hours |
120
hours |
18
hours |
My runtime’s didn’t match Klarus’s all that well. For my first runtime test I started the light on Turbo uncooled and the light steps down pretty aggressively quite quickly about 4 minutes before starting a seasaw motion as the light heated up, and them stepped down to cool off but then what was nice is that it went brighter again as thermals and battery power allowed. The average output for the first hour was somewhere around 60% relative output. The next hour was very stable at about 45% output, before the light started to step down slowly and small bumps at first before LVP kicked in at about 185 minutes of total runtime. Other major manufactures, namely Olight have started to be very honest about what their high lumen lights can do before stepdown and I believe Klarus should do this as well, it would be more honest then to suggest their lights can do 1.2 hours on turbo or 1.5 hours on high. Reality is no light can do this but it’s not obvious to non flashaholics.
Overall heat was well managed with the active thermal controls here. At 1 minute I measured 92F, at 2 minutes at 98F, and at 10 minutes I measured 96F. LVP kicked in at 2.688v which is lower then I would like to see.
UI
UI here is simple and straightforward and it has 8 total output modes. 5 of those modes are constant on, and 3 are forms of blinking. From off, long press on the button to get to moonlight mode at 1 lumen. Press again and hold to get to low, keep pressing to cycle through low, medium and high. Double click to go to turbo. Tripple click to go to the blinking modes.
The light also features memory mode for modes other then turbo, moonlight, or the strobes. It also had lockout mode, but I personally just break contact with the battery as it’s easier and faster.
Recharging
The light recharges with a standard MicroUSB cable, this is a little frustrating given the price of the light and that it’s a new release for 2020 where USB-C should be the standard. I recharged the included 5000mAh battery from LVP at 2.825V to Full at 4.13v in 3 hours and 35 minutes with a maximum charging speed of 1.99A. As the battery capacity filled up charging slowed down as expected. I saw no problems with the built in recharging on this light.
Pro’s
- Compact size for a 21700, nice fit and finish
- I enjoy the new gear tooth milling in the body
- Easy interface
- Active thermal controls.
Con’s
- MicroUSB instead of USB-C, at least the charging speed here is fast at 2A
- Pretty cool LED tint with some of the characteristic XPH 70.2 tint shift across the beam
Conclusion
If you are looking for a compact 21700 style EDC flood light with an electronic switch up front, the G15 could be a good choice for you. It was a surprise to see active thermal management here that allowed the light to get brighter again after step down after it cooled off. Not enough lights do this in my opinion. I like the new texture here on the body of the light, hopefully it’s something that stays, I think it’s just about perfect for EDC, not too much to rip up your hand or pocket but definitely better than standard diamond knurling. 4000 Lumen turbo mode here isn’t quite as impressive as the numbers suggest, it’s not significantly different from the high of 2000 lumens. That said it’s really a light that’s best run on the lower output modes anyways for a more useful runtime. Hopefully in 2020 we see Klarus switching to USB-C (That support USB-C to C) in their higher priced lights and we can be hopeful that we will see something other then cool white too for us enthusiasts like myself that prefer warmer and neutral tints. With all that said I can recommend the Klarus G15 with reservations.
Thanks for watching to the end of this video and continuing to support me. Without your views, comments, and likes it wouldn’t be possible for me to continue to bring videos like this to you guys. I look forward to 2020 being a fun year and I have a few ideas for giveaways and other fun events for those of you who are viewers and followers on social media of the channel.
Full Image Gallery on this review https://imgur.com/a/9b3UVcV
Pickup the Klarus G15 at Battery Junction http://bit.ly/2udnN8F
Read more about the Klarus G15 at https://www.klaruslight.com/Products/GSeries/724.html