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  • Drok
    Keymaster
    November 18, 2015 at 10:28 am
    Post count: 2971
    in reply to: 12VDC to 24VDC 7 Amp Waterproof Buck Converter Needed #2422

    Dear Reed, how about this 12V to 5V usb converter, please click the product link to get more info.
    If you still have other questions, please feel free to contact us.
    Best regards,
    DROK

    Drok
    Keymaster
    November 18, 2015 at 10:15 am
    Post count: 2971
    in reply to: 12VDC to 24VDC 7 Amp Waterproof Buck Converter Needed #2421

    Dear Eric Kunz, sorry that we don’t have the product. Thanks for your understanding.
    Best regards,
    DROK

    Drok
    Keymaster
    November 18, 2015 at 7:19 am
    Post count: 2971
    in reply to: Voltage regulator #2420

    Hi, thanks for your post, but we are sorry that we don’t have such regulator up to 200 watt now.
    Thanks!
    DROK

    Drok
    Keymaster
    November 18, 2015 at 6:49 am
    Post count: 2971
    in reply to: Headphone Switch Converter Instructions #2419

    Hi, please click the below link to download it,
    http://www.droking.com/wp-content/uploads/2015/11/180042-Instruction.pdf
    Any other questions, don’t hesitate to write back to us.

    Best regards,
    DROK

    Drok
    Keymaster
    November 18, 2015 at 6:24 am
    Post count: 2971
    in reply to: troubleshooting dc 500 amp meter w shunt #2417

    Hi, did you order this DC 500A ammeter? If yes, please tell us what is the actual measuring current? and what’s the wiring? Please send us some photos then we can check more details.

    You can upload the photos to http://imgur.com, then send us the links.
    Looking forward to your reply.
    Best regards,
    DROK

    Drok
    Keymaster
    November 11, 2015 at 9:12 am
    Post count: 2971
    in reply to: DC-DC Auto Boost Buck Module 8A 12V/24V Constant Voltage/Current Car Regulator #2339

    Hi, did you purchased this 8A Boost Buck Module? Yes, it is an inappropriate use. You need to use a constant voltage and current module to limit the max current when charging the battery.
    Any other questions, don’t hesitate to write back to us.
    Thanks!

    Drok
    Keymaster
    November 11, 2015 at 8:52 am
    Post count: 2971
    in reply to: DROKreg; Mini Bluetooth 30W amp – how to change BT name? #2338

    Dear Thomas,
    Sorry. our technicians said it cannot be turn off the the voice/music by powerup and shut down.
    Thanks for your understanding.
    Best regards,
    DROK

    Drok
    Keymaster
    November 6, 2015 at 9:01 am
    Post count: 2971
    in reply to: DROKreg; Mini Bluetooth 30W amp – how to change BT name? #2308

    Dear Thomas, thanks the purchasing. But sorry that it’s impossible to do it. I have forwarded to our technicians. hope it will be solved in coming days.
    Thanks!

    Drok
    Keymaster
    November 5, 2015 at 2:43 am
    Post count: 2971
    in reply to: DOEK 8A/100W DC Buck Converter – flashing #2301

    Hi Alvin,
    Did you get this 8A 100W Converter? What’s your input voltage and what’s the amps of your power supply? and then what’s the watt of the LEDs?
    Looking forward to your reply.
    Thanks!
    DROK

    Drok
    Keymaster
    November 5, 2015 at 2:05 am
    Post count: 2971
    in reply to: LM2577 w/ LED strip #2299

    Hi, thanks for the purchasing. Did you bought this LM2577 converter? if yes, please change to a higher watt or higher voltage power supply due to the power consumption. If it still cannot work, please tell us the details and send us some photos.
    Any other questions, feel free to contact us.
    Thanks!
    DROK

    Drok
    Keymaster
    November 4, 2015 at 7:00 am
    Post count: 2971
    in reply to: DROK® Battery Capacity Tester Indicator Monitor Meter #2289

    Hi, sorry for the misunderstanding. The “OK” button just used to control the screen back light, it cannot select the option. Please follow the steps:
    1) Power off the indicator
    2) Press and hold Kdn key
    3) Power on the indicator
    4) Release Kdn key，then the screen will display “Pbx” or “Lix” (Pb is lead-acid; Li is lithium battery; X is the number of cells), then use ↑ Kup and ↓ Kdn to select battery types.—-Li3
    Please reply us if it still cannot work and tell us your order ID.
    Thanks!
    DROK

    Drok
    Keymaster
    November 4, 2015 at 3:56 am
    Post count: 2971
    in reply to: 3-series Lithium Battery Pack Protection Circuit Instructions #2286

    Hi, sorry that we don’t have the paper instruction for those DIY products and all the info are on the website. Did you get this Lithium Battery Protection Board? Please make sure you didn’t reversely connect the wires of the “VH” “VM”. If not, please follow the wiring and check it again.
    090643_wiring

    if it still cannot work, please reply us and then tell us more details about your using environment? If you can, we sincerely hope that could you please send us a picture to let us check what is the problem detail?
    Looking forward to hearing from you.
    Thanks!
    DROK

    Drok
    Keymaster
    November 4, 2015 at 3:00 am
    Post count: 2971
    in reply to: Wiring Ammeter Dual #2282

    Hi, thanks for the purchasing. did you buy this DC 0-100V/50A Ampere Volt Meter? There are 3 wiring diagrams on the website, you can choose the diagram as your using condition. Maybe you can tell us your device and requirement details, then we can tell you the wiring.
    BTW, if you need us to send the diagram to your mail, please tell us your mail address.
    Thanks!
    DROK

    Drok
    Keymaster
    October 30, 2015 at 6:11 am
    Post count: 2971
    in reply to: The world needs a 12vdc pulse counter #2173

    Dear friend, thanks for your post but we are sorry that we don’t have such pulse counter now. I will forward your requirement to our technical team. Thanks!

    Drok
    Keymaster
    October 30, 2015 at 2:00 am
    Post count: 2971
    in reply to: TDA7297 stereo to mono #2171

    Hi, you bought the TDA7297 Mini Digital Amplifier, right? If yes, you cannot connect the right and left channels together to drive 1 speaker, but you can use is as a mono amp. it can connect the mono speaker and it will not loose any quality. If you have any further concerns, please write to us we will be more than happy to assist you. Thanks!

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Viewing 15 posts - 2,881 through 2,895 (of 2,965 total)
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