DC 5-32V to 0-30v 5A 30w buck converter
Coupon Code: LQ241120A
20% OFF 
5 Digit DC +/- 10.000A Ammeter
Promo Code: H14B00DS
$4 + Free Shipping
DC 0-600V Digital Voltmeter
Promo Code: H19B00CH
$4+ Free Shipping
$5 + Free Shipping
Digital Volt Ohm Resistor Meter
Promo Code: I30B00S6
$5 + Free Shipping
AC 80-260V 100A Digital Multimeter
Promo Code: H28B015M
$5 + Free Shipping
1.8V-3.6V MCU Stereo Receiver Module
Promo Code: I01B00C0
$5 + Free Shipping
$6 + Free Shipping
2pcs Digital Motor LED Tachometer
Promo Code: J03B00L4
$6 + Free Shipping
2pcs DC 0-33V Voltage Tester
Promo Code: H19B00DR
$6+ Free Shipping
2pcs DC 0-33V Voltage Tester
Promo Code: H19B00DR
$6+ Free Shipping
Your sale prices are not showing up on Amazon link that i am being routed to. Example. The relay board for $1 sale price is $7.69on the link!
Hi DonL,
The coupon price will not show on the product page.
When you pay for the product with the promotion code, the final payment will be the coupon price.
Hope this can help you.
Best regards
The promo codes don’t seem to work. Every time I enter them I get “the promotional code you entered cannot be applied to your purchase”
Hi Scott,
Thank you for writing in.
Could you please send us an image of your order details page to let us check the problem details?
With your help, we can find a solution more quickly.
Best regards
It seeems to be working now. Did the codes change?
USB 2.0 Charger Detector Multimeter Promo Code: G07B00J3 $5 + Free Shipping is not working either. I get the same “the promotional code you entered cannot be applied to your purchase” when I follow the link by clicking on the “Buy Now” button on this web page that takes me to Amazon.
Hello Hugh Ewer,
Thank you for writing in.
Could you please send us an image of your order detail page to let us check the problem detail?
You can send this information by email (service at droking dot com).
With your help, we can find a solution more quickly.
Best regards
Does it apply for Amazon.de also?
Hi Hieu,
Thank you for writing in.
Sorry that this is only for Amazon.com.
Beg your understanding.
Best regards
What are the differences (technical, pricing, or whatever) between:
B00J3N2JKY
B00J3K09B8
B00J3HYD0O
Thanks!
-Desmond
oh…found one more too on your Amazon page.
B00J3JSEG6
Hi Desmond,
Thank you for your interest in our products.
There is only slight difference with these products.
B00J3N2JKY and B00J3K09B8 are specially for charging iPhone/iPad/S4. B00J3N2JKY is with red and blue dual color digital display while B00J3K09B8 is with red digital display.
B00J3HYD0O and B00J3JSEG6 are for universal version. B00J3JSEG6 is with red and blue dual color digital display while B00J3HYD0O is with red digital display.
Hope this can help you.
Best regards
I also cannot get any of the promo codes to work.
Hello Brian Koch,
Could you please send us an image of the order detail page to let us check the problem details?
Looking forward to hearing from you.
Best regards
Promo code F03B00JY not working for DC 3-8V 3A USB Digital Multimeter.
Promo code F03B00E1 not working for DC 0-199.9V LCD Digital Voltmeter.
Other promo codes working fine.
Hello J Wood,
Since the system need time to verify the promotion, the promo code will not work right now.
Please wait a few hours and then apply the codes again to see if they can work.
If not, please feel free to write back to us.
Beg your understanding.
Best regards
Drok is simply awesome…..all these items Drok makes will make your home electrical or electrical projects go so nicely. You will learn things along the way regarding current loads, wiring methods, and many of the other requirements that say your LED lighting projects demand, your solar panel charging projects demand, your automotive projects demand or whatever interesting things you might have in mind or planned. Most ALL of the DROK products I have purchased…and I have purchased many many of them….but mostly ALL Drok products work well and as advertised. Sometimes you have to be creative in obtaining the instructions and the pin outs of some of these products….but many people purchase Drok items so the pin out diagrams or instructions are usually found somewhere and Drok Amazon web pages also are a good source.
So you cannot go wrong people……when it comes to home electrical or electronic projects always check the Drok web page for what you need. I don’t usually comment too much on the things I buy because I would be spending all my time doing that….but Drok is the way to go…….and it needed to be said.
Hello J Wood.
Thank you for writing in and your appreciation.
It is a great encouragement for us.
Thank you so much and looking forward to serving you again.
Have a nice day!
Best regards
I totally agree with J Wood, Since finding out about Drok products I have been a a loyal customer. Everything has worked great and is so much easier than building a circuit from scratch. I just started incorporating my tests at work with Drok regulators and boosters with much success. Where we would use two power supplies we can now use 1 power supply with a Drok regulator to get the 12VDC and 5VDC without using other equipment or making a circuit. You just cant beat the price for the time saved. I am a test engineer and the Drok products with the Audrino microcontroller have made my life so much easier. My only complaint is that you do not offer more products in other areas, but I am happy with what you offer now so thank you very much!!!
I ordered 5 DC 3A Buck Converters though the special and received 4 DC 3A Buck Converters and used a ink jet printer cartridge. I had a good laugh when i opened the very large box to see ink everywhere and 4 tiny packages. The DC 3A Buck Converters were well packaged and were not damaged. Amazon is handling the claim so all is well.
Good to see you all have a sense of humor. Thank you for your great products.
Hello Brian Koch,
Thank you for your business and appreciation.
It is a great encouragement for us and we are so glad that the product can meet your demand.
If you have any questions, please feel free to contact us.
Have a nice day!
Best reagrds
I have tried to use your promo code for the DROK® USB Volt Amp Power Meter Voltage Tester Current Charging Monitor Universal Data&Charge LED Display. Amazon will not recognize the Promo code. I have tried a couple times the last couple days. Any suggestions.
This is the message I get when I enter the code at Check-out
F25B00JY
We’re sorry, we weren’t able to save your gift card or promotional code information. Please enter it again or try using another form of payment.
Hi Tom,
Thank you for writing in.
There is something wrong with the code.
So sorry for the inconvenience caused on you.
Here is the right code for you: F24B00JY, please try it again.
Beg your forgiveness.
Best regards
Thank you!
Amazon does not recognize the free shipping, they say “free shipping on orders over $49. This happens when I click on your “buy now” link, add to cart and go to check out, apply coupon code. They’re wanting $5++ shipping.
Hello Rocky,
Thank you for writing in.
This promotion is not included the shipping cost.
According to Amazon, if you are the Amazon prime member, you can enjoy free shipping.
If not, you need to pay for the shipping cost or “free shipping on order over $49”.
Beg your understanding.
Best regards
Rocky, Amazon Prime is well worth the investment. With the clearance items Drok offers i get the product for as little as $1.00 and get free 2 day shipping. you can only order 1 item at a time but who cares, I had the fed-ex, ups and usps people going crazy a few weeks back when i has orders coming in for almost 2 weeks straight every day.
Code F28B00YC doesn’t work for DC 10A 600V Ammeter Voltmeter
Hi, The code G19B00ML reduced the cost of Portable Bluetooth Audio Speaker to $12, not $6. Thanks.
Hello HT,
So sorry for the inconvenience caused on you.
This problem may be caused by the system.
We have fixed the problem.
Could you please try to apply the code again?
If it still cannot work, please feel free to write back to us.
Best regards
The code for the speaker is working now. Thanks for fixing it.
Hello HT,
You’re welcome.
If you have any questions, please feel free to contact us.
Have a nice day!
Best reagrds
Code G21B00YC is not working for the 2pcs DC 50A 600V Ammeter Voltmeter offer.
The promotion code for Portable Bluetooth Audio Speaker, G19B00ML, does not work. Amazon checkout discounts it to $12.00 instead of $6.00.
Hello R Fox,
Thank you for writing in and so sorry for the inconvenience caused on you.
These problems may be caused by the system.
However, the problems have been fixed.
For the code of G19B00ML, please try to apply it again.
For the 2pcs DC 50A 600V Ammeter Voltmeter offer, could you please try to apply this code (G26B00YC) 4-5 hours later?
If they still cannot work, please feel free to write back to us.
Best regards
USB 2.0 Charger Detector Multimeter Promo Code: G07B00J3 $5 + Free Shipping is not working either. I get the same “the promotional code you entered cannot be applied to your purchase” when I follow the link by clicking on the “Buy Now” button on this web page that takes me to Amazon.
Hello, I have ordered at least 30 items from Drok and i love them all!!. I do have 1 question and 1 concern.
Question, I have bought around 10-15 different $6.00 clearance items in the last 4 months, every one of them states “2PCS” eg (2pcs QI Wireless Charger), (2pcs Bluetooth Sports Headphones Hat), and (2pcs DC 0-33V Voltage Tester) my question is in what does the 2pcs refer to? In America, it means that the buyer is buying 2 pieces or two of the product in the picture, yet i have not ever received two product for the price of one. Is this an error or do you intend it to mean something else?
Problem: I love your discount but you have some of the worst codes of any Amazon seller. I have tried to get the QI Charger at least 5 times a week and it NEVER worked for me. Why do you have so many problems, not one code i have ever used worked the first time, i do not understand, but other than that, i love DROK.
Hello Marc Ramos,
Thank you for writing in.
2pcs QI Wireless Charger means you can buy 2 pcs QI Wireless Charger by $6.
You need to add two pcs QI wireless chargers into your cart, and then the code will work.
Please try it.
If it still cannot work, please feel free to write back to us.
Best regards
Your listing says Item amount + FREE SHIPPING. However, when checking out, it doesn’t give the free shipping. It only does that if you agree to sign up for Amazon Prime, which I don’t want to do and it is not stated that way in the offering. What gives?
Hello Terry,
Thank you for writing in.
According to the policy of Amazon, the free shipping is available for the Amazon Prime and the order which the total price is more than $35USD.
If you are not an Amazon Prime, you cannot enjoy the the free shipping until the total price of your order more than $35USD.
Beg your understanding.
Best regards
Dear Drok
Your codes are not working again. I have saved the screen shot and will email it to u if u provide an email address.
Dan Snyder
Hello Dan Snyder,
Thank you for writing in and so sorry for the inconvenience caused on you.
Could you please tell us which code does not work?
You can send the code information and the image to us by email (service at droking dot com).
Looking forwards to hearing from you.
Best regards
Ordered a DROK 1-8S precision battery monitor LiPo voltage checker warning buzzer with LED display and I am very happy with the product quality and price.
Thx