Question about Surefire U2 Ultra Digital Series Light

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I have a Surefire digital Ultra 2. My switch in the tail cap stopped clicking for on/off...this is my least used flashlight so I know it is not worn out. I can press it in to activate, it just wont click to stay on. Please advise.

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When my E2d. Ed defender. 200 lumens flash light is turn on it act like an strob light how to stop it or is it a weak batteries

No, that is a 'feature'. It is for signalling or blinding an attacker.

This is the instructions for the 500 lumen version but it will be the same. Nice light, I run Fenix Tactical. Strobe is usually gained by switching on and then half depressing the button and holding. If this doesn't work, contact Surefire direct.

The E2D LED DefenderĀ® Ultra is a compact 500-lumen flashlight featuring dual-output capability and self-defense enhancements. Utilizing a virtually indestructible high-performance LED and a Total Internal Reflection (TIR) lens, the E2DL Ultra is activated with a pushbutton tailcap click switch that also selects output levels: press or click once for a high-intensity 500-lumen white-light beam-ten times the light needed to overwhelm the night-adapted vision of an aggressor. Return to off and press or click again within two seconds for a 5-lumen ultra-long runtime low beam that's suitable for navigating at night or performing close-up tasks for hours. The Defender's crenellated Strike BezelĀ® provides further defensive options should the need arise. Slender and powerful, the E2DL Ultra is an ideal everyday-carry light.

Jan 08, 2016 | Surefire E2D LED Defender Flashlight Max-...

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I an a SureFire 6P that I can't get to work again. Where can I send it to get it repaired?

To get you light repaired you will need to contact surefire at 800-828-8809 or on the link below.

Jan 12, 2011 | Surefire 6P

1 Answer

Switch will not engauge.

Is this an answer?


Flash light costs $39

Button swith assembly costs $41

Not clear why... 


Maybe you have the Turbo head conversion... $105.


You could replace the switch, or buy a new flashlight, and transfer the upgrades..

Dec 03, 2010 | Surefire G2

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My son dropped the flashlight acouple times and now it wont work

Either the bulb is burn or just faulty or the switch is bad.

Jul 16, 2010 | Surefire 6P BK 6P Original Personal...

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Does not come on at all. Batteries good, ON button barely depresses, have unscrewed back cap and front lamp cap with no fix. Why is button so stift, is there a way to test the LED?

It sounds like your switch is bad. Contact Surefire at and talk to Tech Support, they can better help you and they do have a excellent Warranty and will replace it if it cannot be fixed.

Jun 13, 2010 | Surefire 6P

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I replaced the battery in my surefire E1B light. Nows it will not come on.

You can call up Surefire and talk to Tech Support, they are real good about backing up their product.


SureFire, LLC
18300 Mount Baldy Circle
Fountain Valley, CA 92708

Toll Free: 800-828-8809
Outside the US: 714-545-9444
Fax: 714-545-9537

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Contact Surefire at they are real good at backing up their product.

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Surefire Kroma. The tail switch is not working, feels solid when trying to depress it? Mark

The switch is defective, contact Surefire at and they will repair or replace under Warranty.

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1 Answer

I have a Streamlight Strion Xenon compact flashlight that has served me well for two years. Recently the 'twist to stay on' feature has failed. The 'push the tailswitch on' feature is still functioning,...

Ray, sounds like the switch has a problem. Streamlight is usually really good about fixing things. If you can drop by a Stream retailer in your area, they will probably give you a new tail cap. Or contact STREAM directly.
One thing, when you screw the tailcap tight, does the light come on? I have a SUREFIRE that does that, but I dont have a twist on Streamlight.

Sep 27, 2009 | Streamlight Strion 12V DC Only

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