ChrisMClark
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Come Jordie, you've had half an hour now! 
Sorry Chris, was playing Bus Driver![]()
Whut? You been out car jacking the bus drivers round your way?

Jordie, any chance of a shot with something in it we know for scale? If an ilford film tub fit the end they must be small?? Wayne
So do they have an IR cell Ed? Would they work with a Prolinca trigger?
If you can find them, a plastic Ilford 35mm bulk film container fits on the end brilliantly to act as a cap to protect both the tube and the modelling lamp.
EDIT: Also, Ed, how did you mount a softbox to them?
Hey Jordie, is the plug it comes with one that has 2 flat prongs parallel to each other?Lights came today.
Need a UK Plug adapter or if your skilled you can change the plug over I guess.
You will need to buy the hot shoe extention obviously. and of course the stands.
That would be my understanding too, the Ws is a measure of the energy stored in the flash's electronic components and the guide number is a measure of the light's intensity. You can change the guide number of a head a certain amount by using more/less efficient reflectors which can focus or disperse the light to varying degrees. Obviously more powerful lights will in general have a higher guide number but it depends on the reflector used and probably the flash tube too.I Dont think it does relate, since 150 watts is a power and the guide number is based on light produced or something like.
the different brands will produce different guide numbers at the same voltage
(or so i was led to believe)

Also does anyone know what the fitting is called for attaching modifiers? e.g. Bowens s-type, obviously it's not a Bowens s-type fitting just an example![]()
I have had to pay vat and such on goods in the region of £500 from HK
But never on lower value items like that. But I can be down to luck and the mood of the inspector.
Does anyone know how 150watt seconds relates to a guid number so I can compare to my flashguns?
That would be my understanding too, the Ws is a measure of the energy stored in the flash's electronic components and the guide number is a measure of the light's intensity. You can change the guide number of a head a certain amount by using more/less efficient reflectors which can focus or disperse the light to varying degrees. Obviously more powerful lights will in general have a higher guide number but it depends on the reflector used and probably the flash tube too.
I'm willing to be corrected if I'm talking through back end though![]()
The flash tube is about 2.5" in diameter and the outer front is about 4" in diameter, about the same size as the Jessops Portaflash units.
An Ilford BULK (100mtr) 35mm container is about 4" diameter by about 2" deep!