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Customer Ratings & Reviews

$94.99

Customer reviews

Rating 4.5 out of 5 stars with 974 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.4 out of 5 stars

  • Ease of Use

    Rating 4.4 out of 5 stars

Pros mentioned filter

Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers recognize the DF4000U External Flash for its affordability, ease of use, and reliable flash performance with compatible cameras. Many appreciate its adjustable brightness and useful features. However, some customers have noted concerns about the battery life and weight of the flash. A few have also mentioned that the size is a bit large and the instructions could be improved.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 3 Showing 41-60 of 974 reviews
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Good value

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great flash for the price. Easy to pop on and use. Battery life is not bad.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Price

    Rated 5 out of 5 stars

    Good quality and price

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Second times buying this flash. Good price, good quality, ease to use, does the job. After using theirs for more than 4 years no issues I drop the other one and had an error connection when attaching to cámara that is why I needed a new one. I recommend for starters or even pro photographers.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great buy!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works very well with my Nikon D500 and was a great buy in a pinch!

    I would recommend this to a friend
  • Pros mentioned:
    Flash

    Rated 5 out of 5 stars

    Great flash

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great flash Does what it's supposed to do. Very bright.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Perfect for my D7500

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I’ve had many external flashes over the years and been satisfied with most of their performances. This flash unit performs as expected and is has a learning curve that requires reading the operational instructions before and during use. Otherwise it’s an exceptional unit and I recommend it to anyone needing an extra feature to their photographs.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 4 out of 5 stars

    Amazing lighting

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Meets the lighting my wife needs for her photography portfolio!

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Great features at an affordable price point.

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought 2 of these while my Nikon SB-5000 is being repaired for more than I paid for both of these. It took a little playing around with the settings to get them setup, paired, and working together with my other Nikon SB-500. Overall, the buttons to change settings could be more user friendly but if your a techie or into photography like me, you'll figure it out. These will be great extra flashes for off camera lighting to pair with my SB-5000 as the master once I get it back and are well worth the money for the features you get. They also work great as a cheaper option for someone just getting into the field. I would recommend buying 2 or 3 though for your initial setup.

    I would recommend this to a friend
  • Cons mentioned:
    Size

    Rated 4 out of 5 stars

    bright, quick… but chonky

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    its actually got quite a bit of power to it, not bad. and I got it as open box so for the price, it was totally worth it. its just really big an occupys a lot of real estate in a camera bag. I recommend putting it in like an outer pocket.

    I would recommend this to a friend
  • Pros mentioned:
    Compatibility

    Rated 5 out of 5 stars

    Good value

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I was looking for an external flash to start exploring the use of flashes. I don't do a lot of work requiring flash, so this one was ideal for my purposes. It has a lot of features - more than what I think (at this time anyway) I will need, but I like versatility. I haven't experimented a lot with it, but am impressed with what I have done with it. Sunpak has been around a long time. Its name was more familiar to me than most others. This, the price point, the features, compatibility with my cameras, and availability were the prime reasons for my purchase.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Works well

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This flash was very easy to hook up and use. Would recommend.

    I would recommend this to a friend
  • Pros mentioned:
    Compatibility

    Rated 5 out of 5 stars

    Sunpak external flash!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My BestBuy store in Lexington,KY had just one of these left. I was lucky it was compatible with my Nikon Camera! It was 79.99 plus tax. This flash gives you data straight from your camera. I am using rechargeable double A batteries. It takes four of these.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Awesome flash

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Solid beginner flash, used it at my first wedding and was very happy with results

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Unbelievably Great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product nothing but compliments all around really works well with my camera

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great Budget Friendly

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Worked great for the little project I needed it for and budget friendly.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good bright flash.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Used for shooting inside of a darker theatre. Worked well, maybe a bit too well at times. This will give you the power of the sun and if the room is too dark it will wash out.

    I would recommend this to a friend
  • Cons mentioned:
    Size, Weight

    Rated 5 out of 5 stars

    Great flash

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great external flash fits on my Nikon great and isn’t too bulky or heavy gives a nice amount of lighting to photos

    I would recommend this to a friend
  • Pros mentioned:
    Flash

    Rated 5 out of 5 stars

    Very good buy.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The flash works better than I expected. So far I am very pleased. Takes shadowing away during the day and makes great photos in poor lighting to almost no lighting. And easy to make adjustments if you do not need direct flash or flash is to bright.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Lighting

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Everything I Had Hoped For , Easy To Use Nice ! ..

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Sunpak DF4000U

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    'Replaced' my Nikon Speedlight SB-600 with this. More power, better performance. Under normal use, not too much difference between the two, but the Sunpak flash can reach a bit farther and wider than my Nikon.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Nice flash

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Get’s job done…………………………………………………………………………………………..

    I would recommend this to a friend
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