Cheapest 50K+ lumen monster?

LED Flashlights – General Info
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Hello. I am looking for the cheapest lumen monster (for fun). I want something with 50K+ lumens. The best I have found so far is the Haiklite hk08. From the cutesliving store on aliexpress, it costs less than 130$ after cupons (with 4 21700 batteries included i think). Are there any cheaper alternatives? Keep in mind that I am looking for a hotrod, not a «refined» flashlight.

Update: I have already gotten the HK08 and had it for a little while. If you are considering getting one, do it. It’s the current cheapest lumen monster you can get! The new HK10 is measured and is a little brighter, but that costs a lot more and is a lot bigger (bigger battery).

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Haikelite HK08 is the cheapest over 50k. That’s an amazing sale, I’d say jump on it. I paid more for mine and I considered that a good sale.

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Thank you!

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Id say HaikeLite is your best option!

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Since you have one, I would like to know are the batteries in parallel, please?

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Check out the 1Lumen review on it. I think they’re in series/parallel.

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Looks like series, it says 16.8V on the inside of the tailcap. I would’ve thought for sure parallel. Neat. I might have to get one of these.

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I was thinking about modding one with 70.3 Hi’s, but too bad SFH43’s are 9090 leds. But yeah, it has good driver.

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4S, so could either be a buck driver, or possibly a FET with the LEDs in 4S2P. Seems less than the X75’s efficiency even when adjusting for the lack of active cooling.

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Could also be boost driver like X75

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And yeah, Chinese leds aren’t very efficient. They can produce big outputs, but they need lots of power for it.

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SFH43 are 3V, so it’s possible if they’re in 8S, I guess. AFAIK there’s no teardown of the HK08.

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I second this. I got mine also for $130 from Nealsgadgets during the Christmas sale. No regrets.

The 100W USB-C PD powerbank and 100W charging capability is amazing at this price point. Convoys 21700 button top converters work well to use it with regular flat top cells. Mine is in 6500K and it sure is very cold blue, so keep that in mind. I hope to eventually mod it with a mix of tints if I can find suitable emitters.

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You can also just remove the RPP rings and use flat tops. I’m going to assume there’s no RPP except the physical or there wouldn’t be any reason to have them, so be careful if you do, but you’ll also get a bit of extra performance out of it that way with flat tops.

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Good idea. Did you do that?

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I have a Haikelite HK08 host with the MCPCB. The MCPCB has 7070 led footprints and there seem to be four and four leds connected in parallel and the two groups in series.
I am planning to equip the HK08 host with XHP70.2 and a 12V Anduril driver.

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Please keep us posted on this!

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Measured my HK08/with Opple LM4 - it is below BBL! It is indeed not green, but kind of blue due to the high CCT. (Note: Ignore R9, it varies randomly.)

Turbo (identical at top ramp):

IMG_20240206_123800
IMG_20240206_123800864×665 34.2 KB

Bottom ramp:

IMG_20240206_123849
IMG_20240206_123849864×615 32.9 KB

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Am I looking at the right light? It’s definitely series. In the 1lumen review of the hk08 you can see where it says 16.8V on the inside of the tailcap
haikelite-hk08-closeup-1-1024x771~2

Is that the right one?

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Yes. SFH43 are the LED, not the battery. I was saying that the driver could be a boost driver (i.e. boosting voltage from 4S voltage) if the LEDs were all in series (in which case the driver would need to produce 24V from 16V to run each LED at 3V).

Personally I doubt it is a boost driver though; the X75 uses 6V or 12V LEDs (XHP70 come in both and I’m not sure which of the two) while the HK08 uses 3V LEDs.