SR90 runtime graphs

Hey everybody - I've had a couple of these Olight SR90's for testing since the Shot show and people have been asking us about them so I decided to do some runtime graphs. I only have data for high right now. I'm gathering data for medium as we speak.



The Y axis is the actual lux readings x10 at 8.5 feet away.
Note that I cut off the fan 35 minutes into the third run (yellow)

Hopefully I'll edit this soon - I don't see graphs yet?

Edit:

Found it! I saw it when I quoted your post. Now you've got it, so I'll pull it from here.

AnAppleSnail said:

Hopefully I'll edit this soon - I don't see graphs yet?

Click to expand...

hm try again - I linked to a smaller image

I don't see anything either.:mecry:

andrew123 said:

I don't see anything either.:mecry:

Click to expand...

ah ha it was a permissions setting - try now

Edited.

Permissions errors are weird animals. Is the leveling off due to thermal changes?

Good to see the thermal sensor is working well on the SR90!

Even with the fan off, the drop from 1100 to 950 really wont' be that noticable in "real world" use.

Like the SR90 but...

Like the S1200 better! Here come the SST-90s!

nice, that's far better than i would have expect in terms of heat managment. i ordered one and have been a little uneasy as to whether it would heat up and damage the emitter. kinda nice to see such a small drop. i figured thats the most likely reason for the delayed release. looks like the extra time may have paid off.

interesting, i suppose that means we better at least be holding it when its in action to provide some sort of cooling for it

AnAppleSnail said:

Permissions errors are weird animals. Is the leveling off due to thermal changes?

Click to expand...

I don't there there is thermal management.

berry580 said:

interesting, i suppose that means we better at least be holding it when its in action to provide some sort of cooling for it

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Trust me your hand won't do that much against 30W of consumption It may help a little, but just a little

its passive cooling. kinda nice that it can still be done that way w/ something this powerful. the fewer parts that can fail, the better. i'm sure it can't last forever, even Porsche eventually had to give up air-cooled power plants.

4sevens said:

.................
The Y axis is the actual lux readings x10 at 8.5 feet away
..............

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forgive me for the noob question: it that the standard way of measuring light output of a flashlight? Is the 2200 Lumens reading of SR90 from LED or actual "OTF" as you do for all 4Sevens Quark lights?



...

really 65000 lux /1m ????

i don't think so ...

my aspherical maglite SST-90 has only 38000 lux /1m at 10A ...

Actually 11000 lux at 8,5 feet is 74000 lux at 1m.

Really impressive This light is definitely in HID territory.

4sevens: can you post a graph with Y axis starting from 0?

Amazing! In the worst way we have a 10k lux loss! At those levels is almost unnoticeable i think!

stallion2 said:

nice, that's far better than i would have expect in terms of heat managment. i ordered one and have been a little uneasy as to whether it would heat up and damage the emitter. kinda nice to see such a small drop. i figured thats the most likely reason for the delayed release. looks like the extra time may have paid off.

Click to expand...

Yup, the heat management looks really impressive indeed. I don't know what's the relation between the temperature and brightness for SST-90s but if it is similar to MC-Es, the LED junction temperature at the end of the runtime with the fan off would be only around 75 deg. C. The output lower by less than 15% is also not something I would notice

jirik_cz said:

Actually 11000 lux at 8,5 feet is 74000 lux at 1m.

Really impressive This light is definitely in HID territory.

4sevens: can you post a graph with Y axis starting from 0?

Click to expand...

I guess I could. Those were the data points I have. Starting from 0 would just make the graph really tall - no point unless you're comparing with other lights.

So how does the S1800 compare?

jirik_cz said:

Really impressive This light is definitely in HID territory.

Click to expand...

Yes... the SR90 holds its own against a 35W HID.... no problem... in some ways better.

Left is the SR90 on High, Right is the L35 HID