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In Camera Flashes

Sunpak - DF4000U External Flash

Model: DF4000U-CN
SKU: 5960804
Sold byBest Buy

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.

Generated by AI based on customer reviews.
Features

  • Guide number of 623' at ISO 100

    Delivers powerful light output.

  • TTL technology

    Allows the flash to communicate directly with your camera to intelligently illuminate your shots. An auto-zoom flash head senses the focal length of your lens.

  • Built-in illuminated LCD display and slave function

    Provide creative lighting options.

  • Swivel head

    Turns 180° to the left for added flash control.

  • Hot shoe attachment

    Allows easy installation and removal.

  • Wireless off-camera control

    Provides freedom of motion while capturing photos.

  • Battery-powered

    Requires 4 AA batteries (not included).

  • California Proposition 65 Warning

    WARNING: Cancer and Reproductive Harm -www.p65warning.ca.gov

See all features
Specifications
  • Brand
    Sunpak
    Model Number
    DF4000U-CN
    Product Name
    DF4000U External Flash
    Color
    Black
    Product Width
    3 inches
    Product Height
    7.9 inches
See all specifications
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Reviews

Rating 4.5 out of 5 stars with 987 reviews

5 star rating. 688 reviews4 star rating. 186 reviews3 star rating. 57 reviews2 star rating. 28 reviews1 star rating. 28 reviews
92% would recommend to a friend
Customers are sayingCustomers 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.
  • Price (163)
  • Ease of use (137)
  • Flash (89)
  • Compatibility (62)
  • Performance (56)
  • Battery Life (51)
  • Weight (28)
  • Size (9)
  • Instructions (5)

Customer Images

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.

  • Rated 4 out of 5 stars

    Great value, but heavy in weight

    It's HEAVY. I definitely do bit suggest you carry around at all times. It's great flash for the price, has amazing features on it. It's heavy, so I suggest only bring it if you intend to shoot at night. It eats through AA batteries. I believe I used it once for a shoot and the battery light came on

    Posted by Peoples

  • Rated 5 out of 5 stars

    Flash photography

    Beginning flash photographer, perfect for what I need at this time. Easy to use, pairs with canon camera, great price.

    Posted by Jaycee

  • Rated 4 out of 5 stars

    Great value

    I bought this for taking my daughter’s outdoor senior portraits. It worked great! There are multiple intensity settings which are easily adjusted. There is also auto I believe, but I used the manual. I haven’t been able to play around with it too much, but I feel like this is a great flash for the value. It even has a little flap that you can use with the flash pointed up or away from your subject to try to diffuse the light a bit. I tried this but it didn’t do much being outside. That feature is probably better used for indoor photography. The only thing I’m not too crazy about is the use of batteries. I kind of wish it was rechargeable, but that’s a minor detail. Again, I’ve only used it once so far for senior portraits. It lasted the entire session, or a couple hundred photos. Not sure how much life is left on the batteries, but I will just have to remember to always have spares with me when I go on a shoot. Overall, I’m very happy with my purchase. I was considering a different type that had different color settings, but I chose this one because it was cheaper and I felt like I could maybe figure something out with this flash to get different color flash (colored glass/plastic maybe?). I have a Nikon Z5 camera.

    Posted by RaeRaeinWisco

  • Rated 5 out of 5 stars

    Camera flash

    This flash made a huge difference in my photos. The lighting is bright without being harsh, and it helps eliminate shadows and grain in low-light situations. It’s especially useful for indoor pictures and evening shots.

    Posted by MaceyD

  • Rated 5 out of 5 stars

    Flash Review

    A very nice and easy use of a flash. The only con is that it takes batteries that aren't rechargeable. Adds weight to the camera, but I personally enjoy it.

    Posted by JadeynW

See all customer reviews

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Pros for Sunpak - DF4000U External Flash
Price, Ease of use, Flash, Compatibility, PerformanceBuild Quality, PortabilityThere were no pros for this product—There were no pros for this product—
Cons for Sunpak - DF4000U External Flash
Battery Life, Weight, Size, InstructionsThere were no cons for this product—There were no cons for this product—There were no cons for this product—

Specs

Questions & Answers

  • Can I use this flash wirelessly?

    Yes, this flash offers wireless off-camera control.

    This question and answer was generated by AI based on customer and product data.

  • Does this Sunpak flash have a built-in bounce card?

    Yes, this Sunpak flash has a built-in bounce card to help you achieve suitable lighting.

    This question and answer was generated by AI based on customer and product data.

  • Does this flash have TTL technology?

    Yes, it features TTL technology, allowing it to communicate with your camera for intelligent illumination.

    This question and answer was generated by AI based on customer and product data.

  • What is the guide number of this flash?

    This flash has a guide number of 623' at ISO 100.

    This question and answer was generated by AI based on customer and product data.

  • How does the flash attach to my camera?

    This flash easily attaches to your camera's hot shoe.

    This question and answer was generated by AI based on customer and product data.
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