4 Sevens
Page 4 of 14 FirstFirst 12345678 ... LastLast
Results 91 to 120 of 398
  1. #91
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi Psychomodo,

    Thank you, please email your contact phone number to sales@lumapower.com refer to your order is (paypal)
    Since Xmas is a peak season for postage, we cannot make sure the delivery as normal.
    Will try our best to arrange it as soon as we can.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  2. #92
    Flashaholic*
    Join Date
    Jan 2004
    Location
    Essex, UK
    Posts
    108

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Quote Originally Posted by lumapower View Post
    Hi Psychomodo,

    Thank you, please email your contact phone number to sales@lumapower.com refer to your order is (paypal)
    Since Xmas is a peak season for postage, we cannot make sure the delivery as normal.
    Will try our best to arrange it as soon as we can.

    Best regards,

    Ricky - Lumapower CS
    Thanks Ricky - email sent.

    Colin

  3. #93
    Enlightened zemmo's Avatar
    Join Date
    Nov 2008
    Location
    AK/NM
    Posts
    70

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    This light looks great, but I think I'll wait for a clip and a smooth optic before I buy it. I don't like holsters, and this seems to be a reasonable size to clip in a pants pocket, as long as the pants aren't super tight.

  4. #94

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    An aspheric lens might be a workable alternative to a smooth reflector. It sounds like this led has a very large die though, so getting maximum throw from a small package may not be easy.

  5. #95
    Unenlightened
    Join Date
    Dec 2009
    Posts
    2

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi Ricky,
    I placed an order for the ultra yesterday and it'll be my first posh torch (after lurking for weeks I'm sure it'll be the first of many) and I can't wait for it to arrive.
    Do you have any upgrades or accessories planned for this model?
    Ta,
    Andy


  6. #96
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi Andy,

    D-mini series is one of our major product line.
    Our engineering team will keep close attention to it.
    And we will keep our best effort to offer different options for our customer.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  7. #97
    Enlightened ezue75's Avatar
    Join Date
    Jul 2007
    Location
    Malaysia
    Posts
    79

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    can't wait for teleforce kit. mine just receive today. very cute i love it. thanks ricky
    LumaHunter M1-T, M1-R & M1-Q5, 2 LumaHunter MRV-SE Q5, MRV-SK+M65, Signature TF, D-MINI VX ultra.

  8. #98
    Flashaholic* EngrPaul's Avatar
    Join Date
    Sep 2006
    Location
    PA
    Posts
    2,579

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    .
    Last edited by EngrPaul; 12-18-2009 at 05:34 PM.

  9. #99
    Unenlightened
    Join Date
    Nov 2009
    Posts
    16

    Thinking Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    what happens ?

    the VX Ultra seems to have disappeared from the Lumapower web page...

  10. #100
    Flashaholic
    Join Date
    Sep 2005
    Posts
    224

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    I spend my days in the light thinking about flashlights in the dark

  11. #101
    Enlightened
    Join Date
    Dec 2009
    Posts
    78

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Excellent work, Lumapower.

    In the default 1 x RCR123A configuration, this light has interesting proportions. Any suggestions for a holster?

  12. #102
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi kdaq,

    Sorry, we don't have a holster for it at the moment.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  13. #103
    Enlightened antc_tw2002's Avatar
    Join Date
    Mar 2005
    Posts
    40

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    for one D-mini VX Ultra
    Thank you!

  14. #104
    Unenlightened
    Join Date
    Nov 2009
    Posts
    2

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hello. I just bought your D-mini VX Ultra.

    I am really not that impressed with it. I thought being more than twice the lumens of my Fenix TK11 R2 it would be a lot brighter.

    The Fenix is a much better thrower. It does not seem like it is really brighter even on high. Are you going to come out with a teleforce kit for this model soon?

    I need to know if I should wait or send it back.

  15. #105
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi BrightLight2000,

    1. The Lumens out is not direct proportional to Lux readings. To double the Lux readings, it needs 4X of Lumens out.

    2. D-mini VX Ultra offers a larger hotspot and means a Flood beam.

    3. A Tele-Force with similar diameter won't increase the Throw by much but a Turbo-Force does.

    Refer to Turbo-Force, our engineering team will have more info. to me in the coming weeks.

    And I will post any updates here when done.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  16. #106
    Unenlightened
    Join Date
    Nov 2009
    Posts
    2

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Are you saying that turbo force will be coming soon?

  17. #107
    Flashaholic
    Join Date
    Feb 2009
    Posts
    129

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Quote Originally Posted by lumapower View Post
    1. The Lumens out is not direct proportional to Lux readings. To double the Lux readings, it needs 4X of Lumens out.
    Huh? Everything else being equal, the illuminance is directly proportional to the luminous flux. One lux is by definition one lumen per square meter so if you double the lumens you also double the lux readings...

  18. #108
    Enlightened cocoro1967's Avatar
    Join Date
    Jan 2010
    Location
    SAITAMA/JAPAN
    Posts
    23

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Quote Originally Posted by lumapower View Post
    Hi BrightLight2000,

    1. The Lumens out is not direct proportional to Lux readings. To double the Lux readings, it needs 4X of Lumens out.

    2. D-mini VX Ultra offers a larger hotspot and means a Flood beam.

    3. A Tele-Force with similar diameter won't increase the Throw by much but a Turbo-Force does.

    Refer to Turbo-Force, our engineering team will have more info. to me in the coming weeks.

    And I will post any updates here when done.

    Best regards,

    Ricky - Lumapower CS


    Tele-Force kit and soon released?
    I waiting

  19. #109
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi wapkil,

    Consider the same distance from light source to the measure point.
    It means : Lux = k x square root (Lumens)

    So, I have to revise my stament as :
    1. The Lumens out is not LINEAR proportional to Lux readings. To double the Lux readings, it needs 4X of Lumens out.

    Hi cocoro1967

    "Turbo-Force" : refer to a larger diameter of reflector.

    Hi BrightLight2000,

    Our engineering team is now working on it.
    Once we have make it ready to market, I will post it with details.

    Best regards,

    Ricky - Lumapower CS
    Last edited by lumapower; 01-15-2010 at 01:04 PM.
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  20. #110
    Enlightened Beampower's Avatar
    Join Date
    Dec 2009
    Location
    Darlington, UK
    Posts
    88

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    How would this fair against the Jetbeam RRT-0 ?

  21. #111
    Flashaholic
    Join Date
    Feb 2009
    Posts
    129

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Quote Originally Posted by lumapower View Post
    Hi wapkil,

    Consider the same distance from light source to the measure point.
    It means : Lux = k x square root (Lumens)

    So, I have to revise my stament as :
    1. The Lumens out is not LINEAR proportional to Lux readings. To double the Lux readings, it needs 4X of Lumens out.
    Well, no. The inverse-square law in the equations should be related to the distance, not the luminous flux. With the same distance and the same viewing angle, the lux reading is directly proportional to the emitted lumens (and vice versa): lux=lumens/area.

    It is actually quite logical. Lumens represent the "amount of visible light" emitted and lux tell "how intense" is the light in the particular area. If your source starts to emit "twice as much light", you will have twice the intensity over a particular area. It has to be that way - you emit twice the amount of photons so with everything else being equal you see twice as much of them reflected. On the other hand, if you keep the flux constant and move the light source doubling the distance, the emitted light will shine over four times larger area, giving you four times lower intensity.

  22. #112
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi wapkil,

    Thank you for correction done.

    As I know and read before " Doubling the luminous flux does not double the apparent brightness"

    To double the "apparent brightness" needs 4X of Lumens out.

    Quite complex for me.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  23. #113
    Flashaholic
    Join Date
    Feb 2009
    Posts
    129

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Quote Originally Posted by lumapower View Post
    Hi wapkil,

    Thank you for correction done.

    As I know and read before " Doubling the luminous flux does not double the apparent brightness"
    Ah, ok. There is a rule of thumb (part of the Stevens' power law) that says exactly that. It doesn't describe the relation between lumens and lux though, only subjective human perception. It is not really precise but in general it is true - you need to have four times the lumens (or lux) to perceive the light as two times as bright.

    Quote Originally Posted by lumapower View Post
    To double the "apparent brightness" needs 4X of Lumens out.

    Quite complex for me.
    Yeah, lumens and lux are simple physical terms (although weighted by the sensitivity of the human eye). Subjective perception and psychophysics in general can be much more complicated

  24. #114
    Enlightened cocoro1967's Avatar
    Join Date
    Jan 2010
    Location
    SAITAMA/JAPAN
    Posts
    23

    Wink2 Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Expand the head with a heat problem? (Turbo-Force)

    I'm just waiting for Turbo-Force ReleaseSMO is a fond
    Last edited by cocoro1967; 01-15-2010 at 06:44 PM.

  25. #115
    Enlightened YAK-28's Avatar
    Join Date
    Sep 2005
    Location
    akron, ohio
    Posts
    31

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    got my ultra this morning. i was wasn't expecting the light to be that small, then i turned it on. i wasn't sure what to expect for output, as to just getting a mentor mt-e and i hoped for a little more of a intense light with that one. but i'm very happy with the ultra's output. i didn't expect to see that much light from that sized light and that was with what ever charge was in the batteries i purchased with the light(they are on the charger as i type). i'm looking forward to playing/checking out this light more tomorrow.

  26. #116
    Enlightened cocoro1967's Avatar
    Join Date
    Jan 2010
    Location
    SAITAMA/JAPAN
    Posts
    23

    Help Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi Ricky - Lumapower CS

    My D-mini VX I received today
    (Payment Transaction ID #3XV14696YG522360X)
    Output level is not changed
    Defective?

    Ultrafire 1865 2600mAh Battery with 1.6A Current

    Ultrafire 1634 880mAh Battery  with 1.6A current

    Please help
    Last edited by cocoro1967; 01-18-2010 at 07:49 PM.

  27. #117
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi cocoro1967,

    It should be locked as "single mode".
    So, please perform 4-half-press within 1 second to release the lock.

    Or you can email to : info@lumapower.com if any question(s).

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  28. #118
    Enlightened cocoro1967's Avatar
    Join Date
    Jan 2010
    Location
    SAITAMA/JAPAN
    Posts
    23

    Broke Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi Ricky - Lumapoweer CS,

    Thank answer immediately
    1 second half push to try four times remain unchanged
    I'll try a more

    What is not up to 1.6A output abnormal?

    E-mail exchange in the future situation      m(_ _)m 

  29. #119
    lumapower's Avatar
    Join Date
    Sep 2006
    Location
    Hong Kong
    Posts
    2,147

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hi cocoro1967,

    The half-press means "Press and Release"
    Do not press to end as this will lock it on.

    Once you figure out the process, it will be very easy to operate with.

    The D-mini VX Ultra with max. current feed to LED as 2.2A.
    With a full charged Li-ion battery (4.2V), the current draw at battery is normal in your case.

    Best regards,

    Ricky - Lumapower CS
    welcome to www.lumapower.com
    Our Paypal id : sales@lumapower.com

  30. #120
    Flashaholic
    Join Date
    Mar 2006
    Location
    Bracknell, England.
    Posts
    122

    Default Re: [D-mini VX Ultra] : The Smallest Search Light with SST-50

    Hereís a question. At what range will the hotspot on a VX be brighter than the hotspot on a VX Ultra. I canít decide which to get but I want the one that will put the most light on a particular spot about 40 feet away.
    If the ultra will be brighter at centre beam at 40 feet, Iíll get that. If the VX B is brighter, Iíll plumb for that one.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •