Any reports on Surefires w/ Malkoff M30.

[bigchelis]

I have a E1E with 6P head and just ordered my Malkoff M30 for it. I will run surefire 3v non-rechargeables and cr123 3.7v rechargeables.

What success in runtime have you experienced and output using this bulb and 1 cell setup?

 

[rudejohn]

I use my M30 in an Aleph 1X123 body, brass E2C adapter, McTc tailcap, with a McE2s switch and Surefire 6p bezel. With my tailcap screwed all the way in it with an AW RCR123 battery it consistently will stay lit for between 25-30 minutes and is brighter than my M60 in a 6p using two RCR 123's or two primaries. Using rechargeable batteries it cuts off immediately once it reaches the batteries protection circuit threshold. With primaries it just gradually gets dimmer in what is called moon mode then eventually quits. I have a 60 ohm resistor in the switch so that when the switch is partially depressed or partially screwed in the current flows through the resistor. using it this way had the light on for well over 2 hours on rechargeable, thats just a guess because I have never timed it, I always change battery before protection circuit in battery shuts it down. One advantage to two stage switch is that when the batteries protection circuit kicks in on high you can back it off and the light will stay lit for awhile on low. This is due to voltage sag when drawing the higher current. I am new to this flashlight hobby and there are a lot of people who could answer you better than I, but this is my experience. I hope this helps.

 

[bigchelis]

I use my M30 in an Aleph 1X123 body, brass E2C adapter, McTc tailcap, with a McE2s switch and Surefire 6p bezel. With my tailcap screwed all the way in it with an AW RCR123 battery it consistently will stay lit for between 25-30 minutes and is brighter than my M60 in a 6p using two RCR 123's or two primaries. Using rechargeable batteries it cuts off immediately once it reaches the batteries protection circuit threshold. With primaries it just gradually gets dimmer in what is called moon mode then eventually quits. I have a 60 ohm resistor in the switch so that when the switch is partially depressed or partially screwed in the current flows through the resistor. using it this way had the light on for well over 2 hours on rechargeable, thats just a guess because I have never timed it, I always change battery before protection circuit in battery shuts it down. One advantage to two stage switch is that when the batteries protection circuit kicks in on high you can back it off and the light will stay lit for awhile on low. This is due to voltage sag when drawing the higher current. I am new to this flashlight hobby and there are a lot of people who could answer you better than I, but this is my experience. I hope this helps.

How do I get one of those two stage switches you mentioned?

"I have a 60 ohm resistor in the switch so that when the switch is partially depressed or partially screwed in the current flows through the resistor. using it this way had the light on for well over 2 hours on rechargeable, thats just a guess because I have never timed it, I always change battery before protection circuit in battery shuts it down. One advantage to two stage switch is that when the batteries protection circuit kicks in on high you can back it off and the light will stay lit for awhile on low. This is due to voltage sag when drawing the higher current."

Wheere do I get the resistor you mentioned and how would I solder to the end cap or twisty switch?

 

[rudejohn]

The Sandwich Shoppe. Do a search at top of page and it will link you to all you need to know. The switch is a mod called the McE2S and will work in some Surefire E series tailcaps. You can get different resistors in switch. 60 ohm is really dim but bright enough to read and find your way around in dark without screwing up your night vision. I use this light a lot. Bright is amazing for so small a package!

 

[bigchelis]

rudejohn,

Thank you for the great info. I checked out the links and this kit sell for close to $40 bucks.

Just one silly question left.

The sandwich shoope has many options like 60,10,30, 40 ohms in the resistor.

going down in resistor ohms gives me more or less light?

Click once its 200 lumens, click again and its the reduced output based on the resistor. Is this correct?

 

[Sgt. LED]

Higher # resistor = lower lumens.

It's a great combo!