*** NEW *** Haikelite SC04 2x26350 / 2x26650

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BlueSwordM
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You need an extension tube for 2×21700/26650s since the boost driver can boost from 3,6-12V, with a limited power output at 2500 lumens, and 7,2-12V, with max output at 5000 lumens.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

fluke
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Thank you.

Tom E
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Just rcv'd one of these SC04's - oh boy, two major issues:

  • it will not run on 1 cell, RED LED comes on, comes on low only, then flickers, then goes off - all in a few seconds. It's acting like the driver is not designed for one cell. It works pretty well on 2 cells, though I only measured 4100 lumens at turn on, Tom E hyped up lumens even, on 2 good LK 5000 cells
  • The LED's are not centered and found out why - the LED centering pieces are too small for the reflector holes so have wiggle room, and the LED's wiggle around in the hole of the centering pieces. So with the 4 separate MCPCB's wired in series, not mounted, just has thermal grease under them, there's lots of slop movement and positioning possible.

Awful design issues... More comments:

  • But I do have to say the overall quality of the light is pretty darn good
  • The LED wires are only 24 AWG coming off the driver though
  • I do like the feel of the switch
  • the bezel is smooth SS, not as pictured strike bezel design - the Ali store page shows 1/2 pics with strike bezel, 1/2 smooth - luv the consistency... 
  • it's a nice compact size with just a one cell setup (probably go this route with a replacement driver, rewired LED's in parallel)

What are u guys doin over there at HaikeLite? Why are you trying to kill your rep like this? I don't get it....

PBWilson
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They’ve got some interesting designs on paper but it seems that there’s something missing in a few of their final products. Shame really. I really like my SC26, but hesitate to purchase any other Haikelite until they’ve been tested and reviewed here.

EyeballFryer
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I got the Haikelite SC04 from their aliexpress store. I first modded the LEDs to SST20 2700K JB4 95CRI from Convoy. Here’s a quick look at the disassembly. The main gotcha is that the reflector does not slide out or unscrew out. It is held down by a screw on the driver side. One you remove the screw and take out the reflector, there are 4 16mm XP-sized MCPCBs wired in series. The brown stuff is not glue, so the MCPCBs can easily be taken out.

Since I don’t need the capacity of 26650s, I tested with 2*18650 protected Keeppower 30Q and these battery converters to keep the weight down.

Pros

  • The UI has a choice of ramping UI and several predefined modes UI groups. I chose the 6 predefined modes group:
    2lms -> 50lms -> 150lms -> 750lms ->1500lms -> Max 5000lms
  • Shining the light at a fan, I couldn’t see any PWM effect. In the lowest mode, my phone detected a flickering effect. Since I couldn’t see it on the fan blades, maybe it’s super high frequency PWM, or some kind of electrical noise. Whatever it is, I could not visibly detect it.
  • At close range (about 3 walking steps in front of me), the hotspot size is similar to a Convoy C8 XM-L2, but it doesn’t have a sharply defined hotspot. It has more of an orange-peel reflector type smoothed out dropoff from the hotspot to the spill area. When walking at night, I felt only a small amount of “tunnel vision” at this close range, so it’s quite usable.
  • At the max mode, the beam is concentrated enough to reach a large bush at 200 meters, despite ambient light coming from nearby building construction.

Cons

  • When the flashlight is on, the side switch is lit blue, and it has PWM. I can easily see the PWM effect by waving the flashlight around or by darting my eyes quickly.
  • The LED centering gasket is loose, not centered, so the LEDs aren’t centered. The gasket is round, different than the pictured square gaskets. They also fit a bit loosely around the LEDs, allowing the LEDs to shift around slightly under the gasket.
  • There’s no physical lockout. I unscrewed the head so the o-ring is visible, and I can still turn on the flashlight. There’s no difference with loosening the long tube adapter, or by loosening the tailcap.
  • The minimum required battery current is not specified. I first tested using these protected LG MJ1, max 8A due to the protection circuit. I can run the max mode from fully charged 4.2V down to 3.0V without tripping the protection, so that’s OK. But when the battery is partly drained (example, 3.6V), and I change modes, the protection circuit trips. This suggests that during mode changing, the driver causes a large pulse of current drain from the battery, tripping the protection circuit. These protected KeepPower 30Qs 15A max are OK.
  • I once saw a bright spark when screwing on the tail cap. This was also reported here.

UI Improvements

  • From off, add a long-press shortcut to the lowest mode. Right now, if I want to change to the lowest mode, I must cycle through the max mode, which is an eyeball fryer, especially at night. Also, if I forget that the last used mode was the max mode, and then I turn on the flashlight, I can also fry my eyeballs.

Conclusion

The SC04 is a good concept. It’s like a budget, compact version of the Thrunite TN40 quad LED searchlight. I like it more than I thought I would, because it’s usable at close, walking range, and it’s also capable of reaching far if necessary. Haikelite needs to fix the cons and make a version 2. Then this will really be a good buy.

EyeballFryer
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Additional con:

  • In 1×26650 configuration, the driver sometimes works normally, and sometimes blinks, then shuts off. I was testing with a KeepPower 26650 15A. My guess is that when the driver first receives power, it tries to identify the battery configuration (1 or 2 battery). And it sometimes misidentifies the single battery as a two battery configuration. This explains why some of the review videos I saw show the SC04 running in single battery mode.
Tom E
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I bought one sort of to see how it stands up to a Q8, and definitely disappointing compared, but should be easily moddable, easiest way would be in a single cell configuration, GOLISI 4300 preferred. As a host, it's pretty nice, and at the time, I got mine on a deal for $45, so for that price it's decent.

Maukka cal'ed ANSI rated lumens measured about 3700 lumens (@30 secs), throw about 125 kcd (700 meters)), with CW SST-20's.

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