DX  » Community » Reviews » royfellows's Reviews
Sort by:
3 Reviews SEARCH
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Verey useful

    posted by royfellows on 02/23/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    Can be used to drive several emitters in series and gives best efficiency when the LED Vf is closely matched to the input voltage. Current output can be vared by changing the loop back resistor. As they come they give 1.2 amps with an R2. Fit an R12 to up t...
    Cons:
    Poor efficiency driving single emitter, I got only about 60% from an 8.2V input driving an XML
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Usefulness that everyone else has missed

    posted by royfellows on 02/26/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    This driver will power either a single or 2 serial wired Cree XM-L at 2.5 amps. This is the maximum safe level in my opinion, read the Cree data sheet re "Thermal Characteristics" 2 serial wired XM-L T6 will output 1600 lumens at 2.5 amps, and thi...
    Cons:
    Size matters as they say, and considering the electonics it could be a lot smaller. Its dimensions could present problems, and ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Modifications for different output currents

    posted by royfellows on 08/06/2010 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    One of the best and most versatile drivers on the Internet. By changing the resistors R5 and R1 (requires expert soldering skills) the outputs can be changed, such as 1.46 amps output for max drive on R5 XPG. Beware design changes on diffeent batches, but ...
    Cons:
    Specifications prone to change time to time.
    View Detail » 
Page 1 of 1
Go to Page:
  • Previous
  • 1
  • Next

WHY CHOOSE DX.COM?

Get great weekly deals and offers like: Collections