Recent content by mddolson

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  1. mddolson

    Help with my MR11 HID head conversion to LED

    I have finally finished my LED conversion. Photos of completed Heatsink, driver, lamp & cannister are here: https://www.scubaboard.com/community/threads/mr11-hid-conversion-to-led.529002/page-4
  2. mddolson

    Help with my MR11 HID head conversion to LED

    Bench model testing is done. Found single mode 10w driver. Decided on Carclo optic rather than reflector & lens. I purchased a 6" x 1.5" dia 6061-T6 aluminum rod, hope to start turning the heat sink this weekend.
  3. mddolson

    Help with my MR11 HID head conversion to LED

    I have ordered another driver, http://www.ebay.ca/itm/191709509869 to replace the one above. Cree 10W T6 XML XM-L2/U2, component of torch flashlight or 12V Battery Car Light. Diameter: 20mm Thickness: 15mm Iutput Voltage: DC12V Output Voltage:DC3V Current: 2.5A Operating Temperature: -20~80...
  4. mddolson

    Help with my MR11 HID head conversion to LED

    Thanks for the input Lucca. I have orders both 2.5 & 3.0 Amp drivers for testing. Waiting for parts now. Mike D
  5. mddolson

    Help with my MR11 HID head conversion to LED

    OK placed an order with DX. My first choice driver was out of stock so as an alternate I ordered a 5mode driver: www.dx.com/p/3v-12v-2500ma-5-mode-led-driver-board-162784#.V2vgTKLpqzk LED star ...
  6. mddolson

    Help with my MR11 HID head conversion to LED

    Lamp head section. Sorry I am unable to upload jpg image, main cylinder inside is 1.40" dia x 2.4" long with1"dia x 0.8" long wire cavity behind (at cable gland) Front lens is 1.62" dia x 0.25 thk sight glass. I am also considering either a carclo optic or 30mm aspheric lens instead of the...
  7. mddolson

    Help with my MR11 HID head conversion to LED

    This light started lift as a DIY trail tech/WA MR11 10W canister light. I'm a machinist & don't know much electronics so need some advise. I can do simple soldering, but have managed to toast my ballast by connecting it in reverse polarity. This is a dive light so needs are simple, on/off or...
  8. mddolson

    MB SUB X1 -VB backup clone ???

    My only dig is the AA batteries. I want at least C cells in my back-up light. Mike D
  9. mddolson

    Darryl Alllan Dive Light Conversion

    I double checked the current on a 12 v lead acid better (13.2 volts). It's 0.20 amperes or 2.6 watts. I emailed the supplier & they apologized & credited a refund my paypal account, & said keep the light for my troubles. So I'm still looking for a 5-6 W, 12V led light source. In the mean time...
  10. mddolson

    Darryl Alllan Dive Light Conversion

    The lamp arrived, but I connected it to a 12V lead acid battery & the light did not look bright enough to be 5 watts. I measured the current at 13.7 V x 0.15 Amp = 2 watts. I have emailed the supplier. Waiting to hear back. They also offer a 3 watt version, I suspect that's what I received...
  11. mddolson

    Darryl Alllan Dive Light Conversion

    Yes , the aluminized reflector in the Darryl Allan, was in poor condition. I sanded (2000 grit) & polished (diamond paste) it on my lathe, but it's not the best. I'm looking forward to getting the new emitter. Mike D
  12. mddolson

    Beginner needs help with parts matching.

    Here's a link to a buddy who did his own Green force LED conversion. Helps point you through selecting various optics also. http://dive.roko.ca/2013/gear/greenforce-hid-upgrade/ Mike D
  13. mddolson

    Darryl Alllan Dive Light Conversion

    I've decided to convert my old Darryl Allan "Bug" light to LED. The miniature thread lamps are getting very hard to find. They don't last either. I bought a 10 pack a couple of years ago, & down to my last one. The light holds 10 alkaline D cells. & the lamps are rated at 12 V , 1/2 amp (6...
  14. mddolson

    Modifying dive light for video/photography with lens.

    You may also have to add a diffuser. I've tried wide angle flood lights(MR16) for photos work under water, but the lamps still have a very hot center spot. This makes getting an even exposure difficult. Mike D
  15. mddolson

    3x C Cell Sabre Lite Conversion

    Here's links to the photos: The modified Cree-Q5 on left & original xenon lamp right http://i1246.photobucket.com/albums/gg603/mddolson/Pelican%20LED%20Conversion/IMG_0702R.jpg The xeonon lamp beam at 10ft on 4ft sheet of drywall (Black dots= drywall screws at 46")...
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