The TT685 and V860 are no more powerful than the TT600 they just add TTL which you will not be using. So you can get rid of many of these combinations and you are left with.

Godox SK300II Studio Strobe, 300W GN58 5600K Studio Flash

If you don't have a flash then buy a TTL hot-shoe flash first. You will want TTL for on-camera run and gun photography where the subject to flash distance is constantly changing. Correcting for that changing distance is the one thing, and the only thing, that TTL does well. Use optional FT-16 trigger to control the flash power ratio, modeling lamp and buzzer, as well as flash triggering

So, after your comments Im lost... I think last choice will be recommended, am I right? ... but it is the most expensive :-)))) Maintenance of the flash must be performed by our authorized maintenance department which can provide original accessories. The flash-tube and the modeling lamp are user-replaceable. Replacement tubes and lamps can be obtained from the manufacturer. Once you find the right exposure and the right power with off-camera flashes/strobes you can shoot thousands of images with manual exposure and flash power and every one will have the same exposure unless you change the flash to subject distance. There was a thread not very long ago by someone who has this strobe and he was having big problems with it overheating. Search the forum for SK300II and I'm sure that thread will turn up.

GODOX Photo Equipment Co.,Ltd. SK Series Kit-Product-GODOX Photo Equipment Co.,Ltd.

The MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.I'd go for TT600 + TT600 and if you don't have enough power add another TT600 and use two of them firing into your softbox. If it is your camera set the lens to manual and nearest focus. Aim at a light or window and take a reading. Stretch the fabric across the lens and take another reading. Synchronously press the GR/CH button and the S1/S2 button can turn on/off the built-in wireless transmission. If there are no wireless and channel indicators displayed on the LCD panel, the built-in wireless transmission is off. On the contrary, the built-in wireless transmission is on. Synchronously press the S1/S2 button and BUZZ button to recover factory settings. Alarm Display

Godox SK300II, SK400II - SK II Compact Studio Flash Manual Godox SK300II, SK400II - SK II Compact Studio Flash Manual

It should work but I would not advise it. Using a radio trigger is far more reliable and allows you to control the power of the off camera flash from on the camera. It makes life a lot easier. A modeling ligh's main purpose is to give you some idea of how the lights are going to illuminate the subject. For example where the shadows are going to fall. The fact that they can help focusing is secondary. Outstanding output stability, no more than 2% shifts when under the same output. Auto memory and recovery of adjusted panel settings.The apparatus shall not be exposed to tripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus. c) Go for the TT685's above the TT600 for the same reasons I did - the price difference is not much - if the V860 is a good price then go for it - just make sure it is latest version with wireless built in. edit: I looked over your posting again. It seems that you already have decent flash (it can swivel). if so, you can just get a tt600 and a trigger for now and use your flash in optical slave mode. Synchronously press the Button and the Button can turn on the built-in wireless transmission and the < > is displayed. If there are other wireless flash systems nearby, you can change the channel IDs to prevent signal interference. The channel IDs of the master unit and the slave unit(s) must be set to the same. Setting the Communication Channel Although it is expected for its price tag, the Godox sk400ii also has a nice and professional feel to it where its build quality feels solid and the materials used to produce it feel professional to touch. The tripod attachment at the base of the light is very easy to use and the metal alloy used in the thread receiver is robust and will not cross thread helping to further extend the lifetime of your new light. Navigation Menu And Control System