Profoto B20 250J Kit Rental: What's Included and How to Use It

Start with what actually ships in the case

A Profoto B20 250J kit rental is only useful if you know what arrives with it. The Matphoto listing describes a 250J head with three operating modes and an 11 f-stop range from 0.25 to 250 Ws, packed with the accessories you need for a basic battery-powered setup. That combination makes it a practical choice for location portraits, small product sets and any shoot where you want to move the light without hunting for a wall outlet.

Before you book, match the included items to your shot list. If your plan depends on a modifier, trigger or stand that is not in the kit list below, plan to supply it yourself or confirm availability with Matphoto first.

Profoto B20 250J kit: the supplied contents

• PROFOTO B20 250J - KIT: Included: 1x Pro B30 500J, 2x batteries, 1x charger, 1x Profoto transmitter, 1x sync cable, 1x master stand, 1x medium white umbrella This is the full supplied packing list. Note that the head named in the inclusions is a Pro B30 500J rather than a B20, so confirm the exact head you will receive when you request the rental.

  

• PROFOTO B20 250J - KIT: Two batteries and one charger are supplied Two batteries give you a spare for longer location days; the single charger means you should plan charging time between uses rather than assuming parallel charging.
• PROFOTO B20 250J - KIT: A Profoto transmitter and sync cable are included You get a triggering path in the box, but the supplied information does not confirm which camera mounts the transmitter supports, so check compatibility with your body before relying on it.

Eco, Boost and Freeze: pick a mode before you pick a power level

The B20's three modes are the main reason to rent this head rather than a simpler monolight. Eco is the default for everyday work: recycling runs from 0.01 to 1.1 s, and flash duration at t0.1 ranges from 1/500 s at the top of the range down to 1/10,800 s at 0.1. Boost and Freeze both recycle in 0.01 to 1.2 s, a fraction slower, but change the flash curve.

Freeze mode is the one to choose when motion is the point. At t0.1 it reaches 1/11,700 s at 0.1, and at t0.5 it spans 1/1,500 s down to 1/38,100 s. That short tail is what stops a splash, a jump or a falling prop mid-air. Boost sits between the two: t0.1 from 1/500 s to 1/10,300 s and t0.5 from 1/1,500 s to 1/15,200 s, giving a little more consistency at the cost of a slightly slower recycle than Eco.

In practice, set the mode first, then dial power. Chasing the shortest duration at full power will not give you the freeze you expect, because the shortest durations occur at the low end of the 0.25–250 Ws range.

Which mode fits your shoot

• Eco: Recycle 0.01–1.1 s; t0.1 1/500 s to 1/10,800 s; t0.5 1/1,500 s to 1/14,500 s. Best default for portraits, interiors and steady product work where you want the fastest recycle.
• Boost: Recycle 0.01–1.2 s; t0.1 1/500 s to 1/10,300 s; t0.5 1/1,500 s to 1/15,200 s. A middle setting when you want a slightly tighter flash tail without committing to Freeze.
• Freeze: Recycle 0.01–1.2 s; t0.1 1/500 s to 1/11,700 s; t0.5 1/1,500 s to 1/38,100 s. Choose this for splashes, motion and anything where a short t0.5 tail matters.

Output and size at a glance

• PROFOTO B20 250J - KIT: Power: 250J; range 11 f-stops (0.25–250 Ws) 250J is enough for a single subject or a small set, and the 11-stop range lets you drop to very low output for wide apertures without adding ND.
• PROFOTO B20 250J - KIT: F-stop at 2 m / ISO 100: bare 11 7/10; with OCF Magnum 22 3/10; with Magnum 22 9/10 These guide numbers show how much a modifier changes your working aperture at a fixed distance, which helps you plan depth of field before the shoot.
• PROFOTO B20 250J - KIT: Dimensions: L 21 cm / H 16 cm / P 11 cm; weight 1,9 kg Compact enough for a single stand bag and easy to reposition by hand on location; the weight is carried by the supplied master stand.

A sensible setup order for the rental

The supplied information covers modes, recycling and flash duration but does not include a manufacturer setup procedure. Treat these as planning steps, not as instructions from Profoto.

1. Confirm the head and mount: Ask Matphoto which head ships (the inclusions list a Pro B30 500J) and whether the transmitter matches your camera system, since the supplied record does not state supported mounts.
2. Build the stand and umbrella first: Mount the head on the supplied master stand and fit the medium white umbrella before powering up, so you are not handling the head at height later.
3. Charge both batteries: You get two batteries and one charger. Charge both before the shoot day and plan a charging window rather than assuming you can top up mid-session.
4. Set the mode, then the power: Choose Eco, Boost or Freeze for the shot, then adjust output within the 0.25–250 Ws range. Recheck the mode if you change the shot type mid-session.
5. Test the trigger before the subject arrives: Fire a few frames with the supplied transmitter and sync cable to confirm your camera triggers the head reliably.

The honest trade-offs

This is a 250J head, not a stadium strobe. For a large group, a big softbox at distance or a bright ambient set, you will be working near the top of the range where flash durations are longest. If your shot needs both high output and a very short freeze tail, this kit will not give you both at once.

The kit is also built around one light. The included umbrella and single stand support a simple one-light look, so a two-light setup means adding a second head and stand. And because the supplied record does not confirm camera mounts for the transmitter or the exact head model beyond the packing list, a quick question to Matphoto before booking saves surprises on set.