Manufacturer specifications from btulight.com
* 3x Cree XM-L LED (U2) with a lifespan of 50,000 hours
* Battery: 3 × 18650
* 204 mm (length) x 52 mm(body width) x106 mm(head diameter)
* 1200-gram weight (excluding batteries)
* 4 levels of brightness: Turbo (3.8A*3)>High(2.2A*3)>Med(0.8A*3)>Lo(0.05A*3);with mode memory
* Brightness:Turbo(3000lumens)>High(2000lumens)>Med(600lu mens)>Lo(80lumens)
* Digital Current Regulation
* Capable of standing up securely on a flat surface to serve as a candle
* Tail cap click Switch
* Made of durable aircraft-grade aluminum
* Super deep Aluminum Alloy Reflector;Shotrange up to 800meters
* Premium Type III hard-anodized anti-abrasive finish
* Toughened ultra-clear glass lens with anti-reflective coating
* With mode memory
Notice: Turbo mode will step down to High mode progressively after constant running for 180 seconds to avoid over-heat problem.
Also note: It does not seem to have an anti reflective coated glass.
This is the first light to come out of the BTU company. This is my 4th triple emitter light, and although you may skim over the specs what is interesting is that is has the same head as the TK70. The head is going to favor throw a lot more than spill. It uses 3* 18650 batteries, which in this case in turbo, they will need to be able to handle at least 3.8A. The choice of a tail-cap switch is questionable, given this light will not be easy to maneuver with it weighing in at 1.2kgs (2.6 lbs) without batteries and the thick bezel on the tailcap.
Many have searched for a powerful light which combines throw and flood - and usually the answer is a HID, but can this compare? Let’s find out…
The light has options of CW, NW or WW tints. The model I reviewed was CW. As you can see, there is no purple tint which usually is indicative of an AR coating.
Left to right: Crelant 7G5V2 with collimator head, 2 SkyRay Kings, BTU Shocker, SkyRay STL-V2, Jacob A60, Solarforce L2M, 2AA Maglite
Shocker: 204 mm (length) x 52 mm(body width) x106 mm(head diameter)
This is the kind of light which will pull your pants down if you try to put it in your pocket. The 1.2kg (2.6 lbs) body and the 3 18650s makes for a very heavy, short blunt weapon. The weight however, may have some merit with heat sinking - we’ll find out about that soon enough…
The finish of the light was flawless, had a clean reflector and a clean lens. No chips whatsoever in the anodizing and feels very solid in the hand. It feels very solid in the hand with no moving parts once everything is screwed in. The bezel adds a nice aesthetic touch.
The knurling provides excellent grip while not being so aggressive as to feel uncomfortable. It is also waterproof to IPX-8 standard with doubled thick o-rings.
As you can see, the shocker has anodized, thick and very clean cut square threads.
It has thick walls which feel good in the hand.
It tailstands very well. It uses an reverse clicky switch to switch between modes. Lo 0.05A~~Med 0.8A
>High 2.2ATurbo 3.8A (Note: these numbers are for amps per emitter, on turbo it pulls a whopping total of 11.4 amps~~ equivalent to a well driven SST-90, also note the Fenix TK70 pulls around 2.5A per emitter, or 7.5 amps total.)
All three wells overlap slightly unlike an Olight SR92, and are very deep which should attribute to its throwing capabilities - the integration allows each individual well to have a greater diameter, instead of having 3 separate wells which would significantly reduce the diameter.The design does not produce noticeable artifacts. The 90mm reflector looks absolutely beautiful with all emitters perfectly centered.
This is my first light to utilise an XML U2 beyond 3 amps, so I’m looking forward to testing what kind of outputs and throw we get!
Comparison photos: Shocker is always on the right
Outdoor photos: Please note these are not indicative of what you see in real life, as my camera cannot capture such low light. Rather, use these to compare to each other.
User interface and temperatures
The switch is just a normal reverse clicky switch, Lo -> med -> high -> turbo. No strobes or SOS.
Temperatures: It was interesting to see how this would fare, given it had a hefty amount of mass, and although the surface area could have been increased, by looking at the graph we can see that it isn’t entirely necessary and it did do quite well.
Initially turned on to turbo, then it kicks down to high at 3 minutes, then it stays on high for another 7 minutes. Tail standing with an ambient air temperature of 20.8C (68.6F), no air movement.
All in all, you will be able to hold this light while running it on high quite comfortably.
Centre of balance
The centre is the last fin, giving it almost perfect balance when in the hand. The light has a great smooth feel and the knurling is grippy, but not aggressive.
Note: These figures aren’t meant to be dead accurate, but it will give you a good indication of the output and throw relative to other lights.
Lumens over time:
As you can see, the Shocker is very well regulated, and on high will keep it’s output indefinitely for 10 minutes.
The shocker is the first flashlight to come from the new BTU brand and it definitely doesn’t disappoint.
As evident from beamshots and relative output figures, the shocker is quite a bright light at close to 3000 lumens, while also being able to throw further than an aspheric. Although it still doesn’t quite reach a HID in terms of output or throw, it still manages to be quite an ultimate light, giving insane flood and throw.
It is quite heavy, but it also feels quite solid and sturdy which is satisfying.
The turbo mode of 3.8A is definitely nice and is very impressive, and kudos to the BTU designers on that part, bringing together all the benefits of other lights into one. This is well driven (high high, and low low), has high raw output and throws extremely well. I’m not kidding when I say it has a high raw output and throws extremely well - for it’s size it kicks some serious ass. It has great heat management, great threads, great anodizing, great UI, great regulation, no PWM, very high output and throw. This throws further than most (if not all) commercial aspheric lights, while having several times the lumen output.
Usually one has to compromise between high output and flood, or lower output and throw - multi-emitter and single emitter respectively. However the Shocker combines a high output multi emitter light that has dazzling flood AND throws better than most single emitter lights. This would be most suited for a Search & Rescue light, or when one is outdoors fishing or in wide open expanses.
Now this may not a replacement of an HID in terms of output or throw, But if you feel you want something smaller, lighter and safer then this would be a viable option.
If we can expect BTU to continue making lights of this calibre then they are definitely lights to be considered.
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