what is the difference bittwin bims

[rojo-toro]

hi what is the difference bittwin bims
c
b
u
is ther more?

i want to modify a flashlight and i need to lern afew thing.
thank you

1-6v from 4 x c 1.5 battery will give me the max output(lumans) the flashlight can give?
cree r2 the rang is 3.7V~18V.
3.7v battery will give the same beam as 18v one?

2-do the lamp will draw more amp from the battery if the totall is closer to the min volt (3.7).



3-can i concet the led with out driver?

4-someone wroght "and i am getting 1.8A current draw measured at the tail"
were is the tail in the electrical circuit?
is this thr right way to measure?
6-were i can find,
direct drive modulel that fit me? beter then the original
ssc-p7-c 280ma

[link removed - DM51]

thank you

 

[DM51]

Welcome to CPF, rojo-toro.

I have removed an advertising link from your post. Your English is a little difficult to understand, but I'm sure members will do their best to help you.

 

[2dark]

Rojo Toro.

I'm sure that your English is far better than I can speak your language, but maybe I can help rephrase your questions so others can help you quicker. I'll provide my input in blue below along side your text:

"hi what is the difference between bins?"
c, b, u, are there more?

I'm sure someone can help you with this - unfortunately I can't.

I want to modify a flashlight and I need to learn a few things, thank you.

1. 6 volts from 4 x C (1.5v) cells - will that give me the maximum output (lumens) the flashlight can give? For Cree R2 is the range 3.7v to 18v?
Will a 3.7v supply give the same beam as an 18v one?

You might want to clarify what flashlight you have here, what driver? I assume you have an R2 emitter?

2. Will the lamp draw more amps from the battery when the total voltage is closer to the minimum voltage (3.7v)?

The lower the voltage, the higher the current draw, to get the same power but it depends what driver you have.

3. Can I connect the LED without a driver?

Depends. What voltage / which LED. Direct drive may be possible.

4. Someone wrote "I am getting 1.8A current draw measured at the tail"
Where is the tail in the electrical circuit?
Is this the right way to measure it?

The 'tail' - remove the tail cap and connect a multimeter (on current/amps setting) one terminal on the negative terminal of the battery you can see and the other terminal on the end of the flashlight body (on an area that is not anodised).

This should give you the current to the driver (not the emitter)

6. Where can I find a direct drive module that fits? Better than the original for SSC P7 280mA?

I can't help you here unfortunately - hopefully someone else will chime in.

Cheers,
2Dark

 

[rojo-toro]

2 dark thank you for your halp.

i'll try to be more clear.

i have uk sl4 diving flaslight.
i'm modify it to led.
i bought :
Cree R2 Drop-In 1-Mode LED Module (3.7V~18V / 26.5mm x 29mm)
Width: 26.5mm
Height: 29mm (without the included support spring)
Output: 117~225 Lumens (manufacturer rated)
Input Voltage Range: 3.7V~18V

the flashlight have 4 × C 9000mAh 1.2V Ni-MH Rechargeable Battery.

what they mean 117-225 lumens. dependent on what? volt??
if i use total 4.8v it's mean i will have less then the max 225 lumens?
how much lumens i will have?

i understand the lamp draw more amps from the battery when the total voltage is closer to the minimum voltage (3.7v) but how much more?


about the bim:
"hi what is the difference between bins?"
c, b, u, m are there more?
i didn't find unswer

these is the main question

thank you

 

[rojo-toro]

someone?

 

[edc3]

The Reader's Digest version, according to Cree...

"All XLamp LEDs are tested and sorted by color and brightness into a unique bin. Each bin contains LEDs from only one color and brightness group and is uniquely identified by a bin code. White XLamp LEDs are sorted by chromaticity (color) and luminous flux (brightness)."

http://www.cree.com/products/pdf/XLampXP_B&L.pdf