v11r problem? visually linear?

Hi I just got a Sunwayman v11r and I thought for the entire range of the control ring that you should see a difference in output. For me anything past 60% on the control ring looks exactly the same. I'm using the AA extender and a brand new AW 14500, fully charged.
On my multi meter I am getting .02a on min, .25a at 25%, 1.57a at 50%, 1.78a at 60% 1.83a at 75%, 1.80a at 100%.

Is this normal?

Gado said:

Hi I just got a Sunwayman v11r and I thought for the entire range of the control ring that you should see a difference in output. For me anything past 60% on the control ring looks exactly the same. I'm using the AA extender and a brand new AW 14500, fully charged.
On my multi meter I am getting .02a on min, .25a at 25%, 1.57a at 50%, 1.78a at 60% 1.83a at 75%, 1.80a at 100%.

Is this normal?

Click to expand...

Yes.

Since this is normal, i wouldnt be happy with it. the rotational range is 1/4 of a full turn only.
i would return the light, get over it and move on.

How about the RRT-0? Any better?

Gado said:

How about the RRT-0? Any better?

Click to expand...

You mean RRT-01 ?

The V11R I have is very linear and uses 3/4ths of the ring movement. In other words it constantly gets brighter until I have turned the ring 75% of its range where it doesn't appear to get any brighter. I find the 1/4th of the wasted turn not to be an issue. In my opinion it functions the way one expects such a design to.

do you have any imr battery to try? your measured current draw looks like the voltage level dropped to a point that the light was not getting brighter passed 70%.

I believe that the first half or 3/4 of the light is set up to be noticeable to the human eye in terms of output being linear. Supposedly after a certain amount the human eye cannot detect it.

Well at least that's what I've heard about it.

GordoJones88 said:

You mean RRT-01 ?

Click to expand...

This with the AA extender http://www.bugoutgearusa.com/rrt0.html

notsofast said:

The V11R I have is very linear and uses 3/4ths of the ring movement. In other words it constantly gets brighter until I have turned the ring 75% of its range where it doesn't appear to get any brighter. I find the 1/4th of the wasted turn not to be an issue. In my opinion it functions the way one expects such a design to.

Click to expand...

Thats how mine works, I was under the impression that they designed the control ring so that you can see the difference throughout the entire range of the ring.

aau007 said:

do you have any imr battery to try? your measured current draw looks like the voltage level dropped to a point that the light was not getting brighter passed 70%.

Click to expand...

I don't have any IMR batteries to try.
I re charged the battery and retested the current: 1.59a at 50%, 1.89a at 60%, 1.96a at 75%, 1.94 at 100%

Grmnracing said:

I believe that the first half or 3/4 of the light is set up to be noticeable to the human eye in terms of output being linear. Supposedly after a certain amount the human eye cannot detect it.

Well at least that's what I've heard about it.

Click to expand...

Seems like an odd setup, why go past 3/4ths if you can't see a difference and all you do is draw more current and create more heat?


Thanks for the input guys

Try retesting the current from max down with a freshly charged battery. It is also better to test if you have a watt meter so you can also see the battery voltage at the same time. Otherwise, do a voltage test at high. If your battery voltage falls down to 3.6v or below at high, that's what you are going to get with that light and battery.

I have an Ultrafire 16340 to test with my Ti2 and I could not get it to hold more than 1.8A at 3.6V at max setting for more than 30 seconds. AW should be a little better but when I use IMR, I was getting over 2.1A at over 3.8V to start.

Also, the last part of the ring appears to max out with brightness, however the 'rate' of soft-start decreases toward instant-on. So with mine, I think of it as 3/4 movement for brightness, and the last 1/4 is for selecting soft start --> Instant-on.

I used to think of it as a defficiency in control, however thinking of it this way allows me to see it as a "feature", and I do use it when im after a softer start.

*another point of view* (using AW 16340s, and pulled 18650s. The 18650s are no where near as current limited as the torch runs HOT!)