Review: Skyray King (3xXM-L - 4x18650)

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Manny
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Still love my King ! My favorite torch….

Edoram
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Sorry for this poor technical question but, I buy Raysky king nw and its feel very good flashlight, is there another alternative of a more powerful and price balanced flashlight, more leed add increase linearly the lumens?, Considering alternatives of 5 ​​and 7 leed?

Tanks and again.

Eduardo.

_the_
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Welcome to BLF Eduardo!

Another good alternative is TR-J12 (especially if/when modded with KD driver), but it's way larger AND not available as NW => I tend always grab King (or APEX) so the TR-J12 is left to shelf..

=the=

 

Manny
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the wrote:

Welcome to BLF Eduardo!

Another good alternative is TR-J12 (especially if/when modded with KD driver), but it’s way larger AND not available as NW => I tend always grab King (or APEX) so the TR-J12 is left to shelf..


+1 on this ….. TR-_J12 is tops…..
Rockspider
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Eduardo don't assume that more emitters = more lumens is a linear equation. It's not. There are overheating problems that arise very quickly and prevent it.

The most important thing for the led emitters is being able to dissipate the heat they produce.

Emitters produce heat, quite a lot actually when driven at full power, and if they are not able to dissipate the heat through the body of the flashlight, the emitter will overheat, reducing the light output, and in the worst case they can be damaged from overheating.

Sky King and some other 3 emitter design lights have very good thermal path and works well at full power (they get hot but within a "safe range" )

There is general concern that multi-led arrays of 5 of more emitters cannot easily dissipate all the heat they could produce if driven at full power, because the size is limited and the emitters are placed so close to eachother. So to avoid severe overheating those multi-led flashlights are driven well below max emitter output.

That means that if a good single XM-L driven at 3,5Amp can produce about 900lm, and a good 3 x XM-L can still drive them 3Amp and output abt. 2500lm, it's hardly possible that a 5 x XM-L can drive them at 3Amp and not overheat, thus will probably drive them like at 2Amp that means abt.600lm per led, total 3000lm.

Same applies to 7 and 9 XM-L lights.

Wink

Manny
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Rockspider wrote:

Eduardo don’t assume that more emitters = more lumens is a linear equation. It’s not. There are overheating problems that arise very quickly and prevent it.

The most important thing for the led emitters is being able to dissipate the heat they produce.

Emitters produce heat, quite a lot actually when driven at full power, and if they are not able to dissipate the heat through the body of the flashlight, the emitter will overheat, reducing the light output, and in the worst case they can be damaged from overheating.

Sky King and some other 3 emitter design lights have very good thermal path and works well at full power (they get hot but within a “safe range” )

There is general concern that multi-led arrays of 5 of more emitters cannot easily dissipate all the heat they could produce if driven at full power, because the size is limited and the emitters are placed so close to eachother. So to avoid severe overheating those multi-led flashlights are driven well below max emitter output.

That means that if a good single XM-L driven at 3,5Amp can produce about 900lm, and a good 3 x XM-L can still drive them 3Amp and output abt. 2500lm, it’s hardly possible that a 5 x XM-L can drive them at 3Amp and not overheat, thus will probably drive them like at 2Amp that means abt.600lm per led, total 3000lm.

Same applies to 7 and 9 XM-L lights.

Wink

Yep….. The King just puts out a wall of light, and doesn’t get extreme hot….. I measured about 2,346 lumens with 4x Orbtronics…. To get a TJ-12 to put out serious light you have to get new driver and pay someone for the build…. I can’t so it myself, or I would ….

Edoram
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Thanks to the 3 for the quick and kind reply, I understand the problem of the temperature of the LED, but the flashlight of 5 or 7 LEDs are limited by the manufacturer to deliver less amps. As I can see there are 3 versions of TR-J12 with DX, MF and (recommended) KD driver, is for this amp limitation?.
Probably I’m assuming to much, Im an economist and electronics are quite complex.

Thanks again.

Eduardo.

NEVER MIND ALL READY ANSWER”, thanks to all again.

raccoon city
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It's a pleasure to have you onboard, Edoram!

Best0270

Edoram

cainn
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Just thought I’d mention in here that I’ve been running my King on just two Panasonic NCR18650A’s since I’ve had it. I haven’t attempted to measure current yet, but ceiling bounce comparisons between it and 3 other XM-L lights (driven at 2.8 – 3.0A) running simultaneously, tell me that it’s almost certainly running at full spec with this battery configuration.

If the current measurements provided by _‌_the__ are correct (around 7.5A) that means the driver wants around 3.75A from each of my cells, which they have no trouble at all delivering. My run time will suffer of course, but I don’t really have cause to operate this light on high for extended periods of time anyway.

FYI Wink

Manny
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I got 1920 lumens with 2 cells and 2,360 with 4 Orbtronics …

cainn
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Manny wrote:
I got 1920 lumens with 2 cells and 2,360 with 4 Orbtronics …

Hmmm, and the Orbs are NCR18650A’s too, correct?

Did you happen to do a measurement with 3 cells?

cainn
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Performed a measurement the only way I can given my lack of specialized equipment.

beeCam LightMeter (app for my Android phone) reported 372 lux on 2 cells, and 384 lux on 4 cells (with a base reading (ambient light) of 12 lux) during ceiling bounce tests.

(these numbers are only meaningful in my own particular circumstance of course)

Can’t say that I can really notice the difference visually however.

Manny
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No, but after 5 minutes is Luke warm on 2 cells. On 4 cells 5 minutes it’s hot …… Hot

mrthor3232
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I work security so i would need a holster I am working with a tk35 Which has one but u would want shake things up a little lol. So dose it have one or where would I be able to pick one up?

God said let there be light so I pulled out my tk70
Fenix TK 70,60,35 TrustFire X6 T8 Zoomable UltraFire 1800L C8 Pelican M6 Lithium Maglite 4D Cell Terra Lux 300m Mini Star 4 D Cell 6 D Cell 2 D Cell 2 D Cell LED 3 D Cell LED 3 Dollar store lights Prim

Edoram
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LOL,
thanks raccoon city, very graphic. Smile

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I have used the Fandyfire version for a “blue hour photoshoot” at the Fly-in.
Once i had set it up, many other photographers were also taking pictures :bigsmile: :

T 28 Trojan:

SV-4B

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I have used a rimmed stainless steel cap with a thin disk magnet placed underneath it and the 4 × 18650 tops for protecting the gold plated driver printed circuit board from grinding when closing the thread. Please refer to www.facebook.com/fatlo.kwok album photos.

http://img841.imageshack.us/img841/8701/sscap1.jpg
!{width:100%%}http://img841.imageshack.us/img841/8701/sscap1.jpg !

JohnnyMac
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mrthor3232 wrote:
I work security so i would need a holster I am working with a tk35 Which has one but u would want shake things up a little lol. So dose it have one or where would I be able to pick one up?
I use an M-4 double mag pouch for my King. Perfect size for it.
raccoon city
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Thanks for stopping by, fatlokwok!

Best0270

fatlock

C-channel
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Wow. That’s a really nice use for this giant mini floodlight.
I gotta say. I finally pull the trigger n ordered a set from Kaidomain.

Just a question guys.

Is it ok to mix 2 kinds of unprotected batteries? 2600 mAh Sony x 2 and 2600 mAh Samsung x 2?

Thanks…

How bright is bright enough...

Runtime VS Lumens...

Sirius9
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Sooo, someone made a new driver (Hi – Mid1 – Mid2 – Lo + mode memory) for this flashlight?

 

Edoram
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Smile Smile

Ledsmoke
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LOL!

Super nice work there Edoram - and welcome to BLF Smile

What do you even call such a machine?? Multi copter?

Wonderful use of both things. I am surprised it can lift the flashlight. I would love to see one of those in real life one day.

Thanks for sharing this Smile

~ Ledsmoke ~

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Chicago X
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mrthor3232 wrote:
I work security so i would need a holster I am working with a tk35 Which has one but u would want shake things up a little lol. So dose it have one or where would I be able to pick one up?

I use a Voodoo 40mm grenade pouch, and much like JohnnyMac’s double M4 pouch, it fits perfectly.

http://wardogsmakingithome.org/index.html

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cainn
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Edoram wrote:
finding new uses for the king, my neighbors are curious

That is absolutely hilarious!

jacktheclipper
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Edoram , I have a light that would be perfect for your heli ... What would your neighbors think about this ?

 

What I do

 

JohnnyMac
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Man, that copter is pimp! What a great toy!

Edoram
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jacktheclipper wrote:

Edoram , I have a light that would be perfect for your heli … What would your neighbors think about this ?

 

The toy is a Mikrokopter I assemble it myself so it took me two months only to understand the assembly process and many burns on my hands and a few capacitors explosions to, it supports a lot of weight so it moves very well with the king on it, this only proves that I am still a kid. Jacktheclipper amazing what you got there, certainly it can put me in the top 10 list of UFO hunters in my country. Smile Smile It is part of someting or just a flashlight?

SKIF2
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About the temperature… Sad
Yesterday my king was working on hi for about 30 minutes… After I tried to switch it off – almost got a burn on my hand. It was too hot to hold for more than 1 second. Do you have the same result after 30 minutes?
or my king is too overdriven?
p.s. I have Fandyfire UV-S5 version.

JohnnyMac
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C-channel wrote:
Wow. That's a really nice use for this giant mini floodlight. I gotta say. I finally pull the trigger n ordered a set from Kaidomain. Just a question guys. Is it ok to mix 2 kinds of unprotected batteries? 2600 mAh Sony x 2 and 2600 mAh Samsung x 2? Thanks...
Sorry, C-channel, far too an important question to let go unanswered!  Absolutely do NOT mix different battery makes or types.  All four batteries need to be the same type and model from the same maker and preferably the same batch if you can.  They must be balanced and matched or else you run the risk of bad things happening.

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