heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM C21C(updated)

[Alex1234]

Time (min)	Xvn (temp in F)	TN31vn	FF-4	SWM C21C (stock)	Defiant 3D triple xpg2 $29.98 home depot	BTU ShockerVN on ncr18650pd	TX25VN 4.2A burn-in	Nitecore MT21A
0:00 min	76	78	80	72	72	74	73	74
1:00 min	82	89	82	89	73	82	90	78
2:00 min	86	97	87	100	74	93	101	84
3:00 min	89	100	104	106	76	98	112	86
4:00 min	92	106	106	110	77	105	115	93
5:00 min	94	110	110	118	78	109	116	95
6:00 min	96	114	116	122	78	112	119	98
7:00 min	98	117	120	126	80	115	123	102
8:00 min	100	121	124	126	80	117	125	104
9:00 min	103	123	129	130	80	120	127	105
10:00 min	104	127	130	135	80	123	129	107

I used a infrared Thermometer on the heat sink fins of the ff4 and on the control ring on the xvn and tn31vn as thats the spot that gets the hottest.
i figure maybe someone will fine this useful. The reflector at turn off on the ff4 was (485 degrees F) lol

also at 10 minutes i compared the extremely hot tn31vn to the cold xvn and there was no loss in output at all still beat the xvn in throw like it would if it were cold

(edit)
Added stock c21c. at 3 min and 7 min the 3 min it stepped down then i put it right back to high as you can see where the heat increase slows. it kept going to 146 degrees at 13 minutes then i stopped as i like this light but dam this thing must be built well

added a defiant triple xpg2 $30 at home depot. shows the heatsinkings not very good all the heat is being trapped inside the light. or maybe its just not drivin very hard output is very good about 1000 lumens not bad for $30

added btu shockervn it preformed very well. puts out a massive amount of light and because of all the mass the light has it takes longer then the other lights to get hot

 

[flyback]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

Interesting info. Thanks for taking the time to do this!

 

[Alex1234]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

Will add the btu shockervn when i get it

 

[Alex1234]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

added stock c21c

 

[Skylumen]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

Love your list

 

[Alex1234]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

Love your list

Do you think your modded c21c will get hotter faster or slower then the stick one. At 10 minutes i was unable to hold it

 

[Alex1234]

Re: i did some heat tests on a few lights xvn, tn31vn and a firefox ff4

btu shocker added

 

[gerolykos17]

Re: Did some heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM

hi...! i am a new member. i 'd like to ask if there is some estimated reduce of the led life, after modding..

 

[Skylumen]

Re: Did some heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM

hi...! i am a new member. i 'd like to ask if there is some estimated reduce of the led life, after modding..

No one knows yet. I haven't seen or heard reports of LED degradation.

 

[Sgt. LED]

Re: Did some heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM

Here's the thing, the lifetime on modern power LED's is really really long.

It's extremely difficult to have enough use on a light to get to the degradation point. If you only had one light in your collection and used it all night, every night, like for patrol..... Maybe maybe you would notice it dimming over time.
It's more likley you break some other part of the light first, lose it, or moving on to a super newfangled whoopie doo light first. This is CPF lol
Early power LED's did degrade due to more primitive phosphor and less understanding of proper heat management overall. Currently, we have almost nothing to worry about.
Use it happily

 

[Alex1234]

Re: Did some heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM

added two more lights

 

[gerolykos17]

Re: Did some heat tests on a few lights btu shockervn, xvn, tn31vn, firefox ff4, SWM

Here's the thing, the lifetime on modern power LED's is really really long.

It's extremely difficult to have enough use on a light to get to the degradation point. If you only had one light in your collection and used it all night, every night, like for patrol..... Maybe maybe you would notice it dimming over time.
It's more likley you break some other part of the light first, lose it, or moving on to a super newfangled whoopie doo light first. This is CPF lol
Early power LED's did degrade due to more primitive phosphor and less understanding of proper heat management overall. Currently, we have almost nothing to worry about.
Use it happily

it's what i have heard of.. maybe for the old ones..
seems i have nothing to worry about, since i tend my lights too much. in order not to break, or lose it...