This is my Y3 stack:
Y3 album link, not enough pics taken though: http://s1054.photobucket.com/user/TomE2012/library/Yezl%20Y3
From post #117 here https://budgetlightforum.com/t/-/24076:
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Got the UCLp lens in today for the Y3. It looks fantastic, dark purple tint to the reflected light, perfect condition.
Results on a Powerizer cell at 4.21v
Lumens: 1,819 @start, 1,732 @30 secs and 136 kcd
I compared 2 different cells before/after Powerizer @4.21v and Efest 35A 18650 at 4.22v:
Powerizer: 4.5% increase in lumens (@30 secs), 8.8% increase in kcd
Efest 35A: 5.2% increase in lumens (@30 secs), no throw to compare
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Note: Please keep in mind the new KK 26700 5000 mAh cells (5300 mAh actual) that Richard carries now fit this Yezl !!
This is the operation doc I gave with the light:
Flashlight Operation
* Custom modified, custom programmed
The user interface is designed to be fast, and quick access to the 4 primary modes of lowest, highest and strobe. For any steady output modes, 1 click will turn the light OFF.
These are the modes, defined from low to high: moonlight - 5% - 40% - 100%
Summary of Operations:
· a quick click goes from a lower mode to higher mode
· a hold or long click (1/3 sec) goes from a higher mode to lower mode
· if paused in a mode (more than 1.2 secs), a quick click will turn the light OFF
· in any mode (including OFF), a long hold (3/4 sec) will turn Strobe ON
· when in Strobe, a quick click will return to the original mode
So for example:
· the light is OFF - hold for 3/4 sec - strobe, click or hold turns the light OFF
· the light is in Hi mode - hold for 3/4 sec - strobe, click to go back to Hi
· the light is in moonlight mode - hold for 3/4 sec - strobe, click to go back to moonlight
For entering strobe, the long duration next mode will briefly engage (between the 1/3 to 3/4 sec times) but I don't find it much of a distraction, as long as it returns to the original mode you were in.
Tail Switch:
The tail switch is a simply power ON/OFF switch. This switch must be ON for the light to function from the side switch. If you have the flashlight with a loaded battery in a duffle bag, suit case, or knapsack, it would be a good idea to turn the power OFF via the tail switch so it can't accidentally go on from the side switch.
Warning:
This is a high powered custom light! Never leave it on high unattended, please.