ThorFire S70S for $39

Agro · December 21, 2017, 6:20pm

ThorFire S70S for $39:

Code:
fef4fb
Frankly, I have mixed feelings about it. Definitely cheaper than Convoy L6, but not as good.

Wineslurper · December 21, 2017, 9:54pm

I like my S70S and at that price it’s a great deal.

Bo4ka · December 21, 2017, 10:20pm

NW or CW?

contigo · December 21, 2017, 11:49pm

Instead of opening another thread i thought ask it here:

I have a S70S….it has a 87000 CD and almost 4000 lumens….
I have the Astrolux c8 coming in the mail and its rated at 102000 cd but only 1300 lumens,

Will a higher cd# always out-throw a lesser cd# regardless of the lumen output?

RobertB · December 22, 2017, 12:20am

Thats a good deal for the S70S ($38.95). The S70S is an excellent light IMO. From everything I’ve heard, it manages heat better than an L6

hIKARInoob · December 22, 2017, 12:14am

Correct. The lux value/cd determines throw; it is throw.
Lumens means amount of light coming out of your light, whereas light intensity, expressed in lux or candela/cd determines throw.

contigo · December 22, 2017, 1:11am

Is there a “rule of thumb” that would tell you how much 10k CD would throw?

Seems the c8 throws about 500 meters(102k cd), so with my garage logic 10kCD would be roughly 50 Meters = 150 feet.

The S70S does throw quite far and going by my simple math, the c8 would out-throw it by 200 feet (roughly).
Am i in the woods with these numbers?

Flying_Luminosity · December 22, 2017, 2:44am

Nope, the Inverse Square Law applies. For twice the throw you require four times (2^2) as many candela.

SQR (10) = ~3.16. so with a tenth of the luminous intensity of the C8 you get 1/3.16 the amount of throw distance (158m which is 518ft).

EDIT: For candela vs throw distance, see here

It seems that 100kcd should actually give you 632m = 2073ft) of throw, according to the formula throw=SQR(candela/0.25). 10kcd equal 200m throw (square root of 40000) = 632ft.

Box · December 22, 2017, 1:30am

Such a bargain. Convoy L6 is $46.
I already got an L6. Didn’t get a S70S cause I was waiting for the BLF version.
If you had to pick only one. L6 or S70S. Which one would it be?

10fp · December 22, 2017, 3:30am

i would get a K70 for $50 get on the list for pre order

WillyD · December 22, 2017, 4:14am

There is no right answer to this question I’m afraid.

Agro · December 22, 2017, 10:10am

Thanks WillyD, it seems I found a better deal than I thought.
Still, not the best price in history.

contigo · December 22, 2017, 12:12pm

Flying Luminosity:

contigo:

Is there a “rule of thumb” that would tell you how much 10k CD would throw?

Seems the c8 throws about 500 meters(102k cd), so with my garage logic 10kCD would be roughly 50 Meters = 150 feet.

The S70S does throw quite far and going by my simple math, the c8 would out-throw it by 200 feet (roughly).
Am i in the woods with these numbers?

Nope, the Inverse Square Law applies. For twice the throw you require four times (2^2) as many candela.

SQR (10) = ~3.16. so with a tenth of the luminous intensity of the C8 you get 1/3.16 the amount of throw distance (158m which is 518ft).

EDIT: For candela vs throw distance, see here

It seems that 100kcd should actually give you 632m = 2073ft) of throw, according to the formula throw=SQR(candela/0.25). 10kcd equal 200m throw (square root of 40000) = 632ft.

Thanks for the explanation!

Bo4ka · December 22, 2017, 12:23pm

What color temperature is it?

Coman · September 10, 2018, 6:36am

37$ , very good price :smiling_imp: