Dynalite Baja B4 Battery-Powered Monolight

Dynalite Baja B4 Battery-Powered Monolight

Dynalite Baja B4 Battery-Powered Monolight

B&H # DYB4400 MFR # B4-400
More on the Way
Expected availability: 7-10 business days

Product Highlights

  • 2.4 GHz Power Control Wireless Receiver
  • 400Ws, 6-Stop Power Range
  • 1/10 Stop Power Increments
  • Rechargeable Li-Ion Battery Power
  • Up to 550 Full-Power Flashes
  • Flash Duration: 1/12800 - 1/500 Sec
  • LED Modeling Light
  • Built-In Optical Slave
  • C-Mode for up to 15 Flashes per Second
  • Bowens Accessory Mount
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Price: $599.00

Instant Savings: $70.00

$0.00 Tax Collected Outside NY and NJ

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Dynalite B4 overview

  • 1Description

Extremely portable and featuring a 2.4 GHz power control wireless receiver, the Baja B4 Battery-Powered Monolight from Dynalite is a 400 Ws strobe that can be taken on-location without the need for any cables. The Baja B4 uses a rechargeable Li-ion battery which can provide up to 550 full-power flashes on a single charge. Also, users can adjust the power in 1/10-stop increments through a 6-stop power range and it has a recycle time of about 2.9 seconds to full power.

The Baja B4 features a flash duration ranging from 1/12800 to 1/500 second and an LED modeling light. High Speed Sync is available for most Canon DSLR's when used with the optional DYBRT616C transmitter for Canon cameras. Nikon users need to purchase a dedicated BYBRT616N Transmitter and also a DYBRR616N dedicated receiver.

A built-in optical slave contributes to the wireless convenience by triggering upon the firing of other strobes. A stroboscopic C-mode is also available for 5, 10, or 15 flashes per second. Additionally, it has audible flash indicators, a glass dome, metal light stand swivel mount, and a standard Bowens accessory mount. Included with the light are a receiver, umbrella reflector, clear protective cover, and a clear protective cap.

Universal 100-240 VAC power option
16 channels of wireless control
T-mode flash duration setting
Digital display screen
Color temperature of 5500K ±200
In the Box
Dynalite Baja B4 Battery-Powered Monolight
  • B4-CH Battery Charger
  • BRR-616 Receiver
  • RST-165 Standard Umbrella Reflector
  • B4 Lithium-Ion Battery
  • PD-101 Clear Protective Cover
  • PC-301 Protective Cap
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Dynalite B4 specs

    Maximum Watt/Seconds 400 Ws
    F-Stop 32 at ISO 100
    Color Temperature 5500K ±200
    Control Range 6 stops in 1/10 step increments
    Flash Duration 1/500 to 1/12,800 sec
    Max Sync Speed 1/250 sec
    Wireless Control 2.4 GHz power control wireless system
    Flash Repeat Cycle 5, 10, or 15 flashes per second
    Modeling Light 5 W LED
    Built-in Slave Cell Yes, optical
    Flash Ready Indicator Yes, audible
    Recycle Time 2.9 sec to full power
    Battery Life 550 full power flashes per charge
    Power Source 1 x Rechargeable 11.1V Li-ion battery pack
    100-240 VAC power source
    Dimensions 13.50 x 4.75 x 8.63" (34.3 x 12.1 x 21.9 cm)
    Weight 6.1 lb (2.8 kg)
    Packaging Infofdwqufczcravdfrqtxdtxerxcvuqftaqaw
    Package Weight 9.4 lb
    Box Dimensions (LxWxH) 14.0 x 9.6 x 8.0"

    Dynalite B4 reviews

    Baja B4 Battery-Powered Monolight is rated 4.6 out of 5 by 21.
    Rated 5 out of 5 by from Best bang for the buck! I can't believe the Baja B4 has not recieved more exposure. I bought the B4 because of its specs and price. I was waiting for a strobe with TTL but did not want to spend the big bucks on the Profoto B1. I took the B4 on a shoot with my daughter. The results and performance exceeded my expectations! I doubt I will be using speedlites again. The TTL feature works as advertised. I was using shutter speeds well beyond my cameras sync speed with no issues. It is so nice to use a strobe on location with no cords! If you shoot Canon or Nikon make sure you order the transceiver for your camera brand to take advantage of the TTL features. If your on the fence just buy it!
    Date published: 2015-08-31
    Rated 5 out of 5 by from A great alternative to more expensive lights I am a Commercial Portrait and Architectural photographer. The Baja B4 is great for on location shooting and for architectural compositing. It's power seems to be more than enough for medium production shoots. The build quality seems solid, usability is fluid, and the battery duration is surprisingly long. This is a great tool for any working photographer. Specifically to architectural, portrait, and event shooters.
    Date published: 2016-09-06
    Rated 4 out of 5 by from Great light for the money I use this unit for architectural interiors. Through my fairly un-scientific methods, I determined that it has a guide number of about 150, using my histogram as a marker to indicate middle gray. That is, at 10 feet at ISO 100, it takes f15 to turn a piece of brown cardboard the correct lightness; zone 5, middle gray, in other words. This is about the output of a Metz 60 series, except that the Baja B4 puts out a nice, round light, and the Metz puts out a rectangular, horizontal light. It's fairly light weight without the battery. The battery is heavy, so when all it said, the unit is fairly heavy. One thing I love: Along with the special transmitter I had to buy for my Canon, you don't need a single cord, cable or transmitter/receiver. You just put the B4 on a stand, screw the transmitter onto your hotshoe, and you're ready! This means that you can take the B4 off the stand, and using the built-on handle, you can hand hold the B4, aiming it in any direction. Another thing I love: You can take the B4 off the stand, place it on the floor and stand it up on it's rear-end, facing straight up! Very handy for background up-lights or in tight spaces that need to be lit up. This is no accident; they planned this out when they designed it, and it's a brilliant idea. One thing I do not like, and I can't believe I have to write this: There is no external battery charger! Even if you have a spare battery, the B4 is the battery charger, and you must use the B4 to charge a battery! One detail that helps; you can have the B4 plugged into a wall outlet while you're using it. It discharges faster than it charges, so you'll still eventually run out of battery power if you're shooting while plugged into an electrical outlet. Another thing I do not like: The battery drains while sitting unused in the unit. If you don't use your B4 for a week, you'll need to recharge the battery for a couple of hours! A small grievance: The modeling light does not actually click off. You turn it down until it doesn't emit light. That means the dial gets turned back on all the time when moving the light, etc. Another small grievance: The reflector rattles around when you move the B4. It sounds bad, but it's securely attached. All in all, this is an excellent flash for the money, and I'm very happy with my purchase. I wish it was more powerful and weighed less, but even with all the other choices, I will buy another one or two of these Baja B4 flash units.
    Date published: 2016-04-14
    Rated 5 out of 5 by from Great moonlight. The build quality is great. Solid metal on the body and light stand mount. What I love about this light is that is has HSS and easy controls. The tests I've done on it show a lot of promise. I set it for t1 and it froze my floor fan in perfect stillness while it was sit on high. The strobe mode has three preset modes but it's very usable. The color balance seems to be very Constant. The bowens mount looks very solid. The remote seems a little buggy but it's minor. And can upgrade it when new tech comes out by swiping out the radio receiver. But it's best to use pocket wizards to take full avantange of this nice system. I will provide an update on this moonlight as soon as I get a chance to use it.
    Date published: 2015-07-18
    Rated 4 out of 5 by from Initial Impressions I purchased the two light kit with case and radio transmitter and receivers to use as fill flash outdoors. Living in Vancouver, BC, where it rains 9 months of the year I haven't been able to do that yet. I have, however, done some indoor headshots with the lights using a Chimera softbox and 7 Speedotron grids. The lights seem sturdy although the light stand mount could be a bit heavier. Having said that, it supported the weight of my Chimera medium softbox (36 x 48) without any problem. The battery lasts a long time and output is good. I used one of these lights in my medium Chimera silver softbox with the internal baffle installed and at 7 feet and ISO 200 got a reading of f11 and 2/10. Using my 20 year old Speedotron Black Line 405 pack (also 400 watt seconds) and 202VFCC head I got a reading about 1/2 a stop less. Pretty darned good, especially considering it is battery powered. What do I really love? No cords! No dinky little sync cords from the light to the PocketWizard. No cords from the flash to a power pack. No cords from the pack to the wall. Even other battery powered units still require cables from the flash to the radio receiver and another to the battery pack. There is a phono in so even if the included transmitter/receivers die you can still hook up your Pocket Wizards. If you are shooting at half power you can crank off another shot at half power instantly. That is great. I have a Photoflex Tritonflash but if you set it at half power it only charges half way and you have to wait for the flash to recharge to get a second shot. They have also stopped supporting the product. Boo! The Bowens mount is very smooth and my 7 Speedotron grids fit the included reflector perfectly. Note that the reflectors only come with the 2 light kit, not the single light. What could be improved? A handle on the back of the flash, rather than the top, would help with positioning especially when using larger softboxes. I would love it if they made a PocketWizard compatible implant so I could use my Sekonic light meter wirelessly. The wireless control of the light output is not perfect. If you have both lights on the same channel/bank and step the power down simultaneously, one light or another will miss the signal occasionally. That isn't an issue for me taking portraits, but if you are a sports photographer with your lights in an inconvenient spot it might make you nuts. The modelling light is pretty wimpy, but in a dark room you can still see it even through a softbox with an internal baffle. Overall, at the price, I think this unit is a winner.
    Date published: 2016-02-17
    Rated 5 out of 5 by from Surprising Workhorse. Bought Another! Tried one to simplify my travel pack. It's great! Liked it so much I bought a second unit. Used mostly interior at 50% power or less. Over 800 flashes and battery is still at half. Recycles quickly enough at lower settings to use 6fps burst. Top handle makes mounting and moving the units a breeze. I feel much safer shooting in damp locations without AC power. Bowens S Mount accessories fit and work. I do wish the modeling light was brighter but it's a compromise I'm willing to make to give up power cords.
    Date published: 2016-08-04
    Rated 5 out of 5 by from a no-brainer i bought one when it first came out and have since bought another B4 and a 600Ws B6(which is only a 1/2 stop more powerful). i use them mainly for wedding portraits and location work. at weddings i will attach either a Bowens beauty dish or a Elinchrom 42 inch square softbox, with double diffuser(with Bowens speedring), as my main light and either a small strip or grid on the second light and use it as a rim/hair light. i used to use a Nikon speedlight for this setup but could never shoot in afternoon sun without having the light close to my subject or trying to rig 2-3 flashes in the box, which took a long time to setup and was always unstable. thanks to the easy Bowens mount,this setup takes seconds to get ready. even with the 42 inch softbox, which is assembled in the carrying bag and just needs minimal setup, the whole process takes less than 30 seconds. the light is very well constructed which makes it a bit heavy so i would recommend a heavy duty stand like the Manfrotto Avenger A475. you could go with a slightly lighter stand but if you're oudoors on a windy day with a softbox or umbrella be sure to have an assistant holding onto the light. another must have feature is the dedicated transmitter for Nikon or Canon which allows you to shoot high speed sync as well as independently adjust the power of 6 different units. the only negative i've found so far is that occasionally the lights don't fire but it seems the issue has more to do with the transmitter/receiver.
    Date published: 2016-03-15
    Rated 4 out of 5 by from Very Good with issues... Overall these units are great. I do recommend them for portability, power, and ease of use. They are big, heavy and a tad slow to recycle at full power. Here are a few problem areas I have discovered after using 6 of them for 1.5years of daily shooting. #1 The knob which controls the modeling light has no click-off position. It can easily be brushed against and the modeling light will turn back on until the photographer notices. Sounds small but very annoying on a day to day basis, and can drain the battery if not monitored. #2 The battery door and clasp are made of cheap plastic. If you knock the light hard or it tips over, the battery can break out the other sides battery door latch. Two of my lights now have the door replaced by gaffers tape to hold the battery in place. Also, the Bowensmount lock switch is cheap and badly machined, I have had softboxes not fit and beauty dishes come loose because they were not properly seated. #3. I use these pretty hard on a daily basis and some of the units have not held up well. I have sent in two units that flat out fried in the middle of a gig so I had to send them in for repair. The repair did take a while but it was fixed without question or cost. I have also had one of the chargers stop working. All replaced, slowly...but with good customer service. Overall, this is about the best choice I have found for monolights that are battery powered. They seem to be the best compromise of cost, weight, ease of use and feature set. I would love to see the build quality step up quite a bit in the next generation. If they used higher end materials, redesigned the latches and switches and made them smaller and lighter, and quicker to charge, that would be ideal. I will wait and see before I invest more into the system.
    Date published: 2017-04-29
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