Power Supply?

Discussion in 'The Projects Forum' started by MDillon, Jul 15, 2013.

  1. MDillon

    Thread Starter New Member

    Jul 15, 2013
    Hi, I am new here, I'm hoping I can get some help with building a little power supply.
    It is a NEEWER CN-160 Patent LED VIDEO LIGHT (with 160 individual LED LIGHTS).
    This runs on 6 AA Batteries, but I want to make it able to plug in to use a wall outlet.
    These are the specs:

    Input: DC 7.2V~8.4V
    Maximum Power: 9.6 Watt
    Color Temperature: 5400K (3200k w/filter)
    Average Service Life: 50000 hours
    Luminous flux: 660 lumens
    Runtime: 70-90mins
    Video light size: 141mm x 62mm x 150mm
    Gross Weight: 430g (without battery)

    What do I need for parts and values? and what schematic could I use?
    Thanks so much!
  2. tracecom

    AAC Fanatic!

    Apr 16, 2010
    According to the specifications you posted, the light runs on 7.2 to 8.4 VDC at a maximum current of 1.33 Amperes. Building a supply would involve mains voltages; you would probably be better off using something like this, even though it is larger than you really need.


    Search for a power supply that is regulated, and outputs somewhere between 7.5 and 8.4 volts DC at 2 amperes or more.

    It is also possible that you could find a 12V "wall wart" that will supply at least 2 amps, and build a regulated 8.4 V regulator circuit for it. It would require a regulator IC such as an LM317 and then a couple of power transistors such as 2N3055 plus a few other components.
    Last edited: Jul 15, 2013