I've made this chart (using the awesome Google Code for Visualisation) to show how the three ranges of Elinchrom flash units vary.
Obviously you can't show everything on one chart.
The size of the circle represents the power in Ws and the axis show the fastest flash duration available and the recycling speed to full power.
You can see how the ELC ProHD
not only has a very fast flash duration but it also recycles very quickly for it's power rating. It is also unusual in that the higher power unit has the faster flash duration. Note that on the ELC Pro HD the fastest flash durations occur near the middle of the power range, rather than at full power.
You can also see that the D-Lite One
has a very good flash duration, but, recycles relatively slowly, which isn't a problem if you're looking for a beginner's studio lighting kit.
Mouseover a circle to see the details of that product.
The second chart compares the old top of the range RX units with the new ELC Pro HD. It really highlights how much more useable the fast flash duration is all through the power range.
If you have any questions, please ask in the comments below and we'll try and answer asap.
All flash durations are t/0.5
An explanation of t/0.1 vs t/0.5 is on our list of future posts!