Broncolor Octabox 150 cm (59.1")

Yes you can use a Impact speed ring with this softbox.

This softbox will work with Profoto lights by adding the Broncolor Speed Ring for Profoto Flash Systems B&H # BRSRP. https://bhpho.to/2UB1Ifs

Yes, this can be used with most LED or flash lamps with coordinating modifier mounts. In your case we would recommend the broncolor Speed Ring for Bowens mount, BH #BRSRBQ • MFR #B-33.401.04.

This softbox will work with Profoto lights by adding the Broncolor Speed Ring for Profoto Flash Systems B&H # BRSRP. https://bhpho.to/2UB1Ifs

Not heavy. Comes with nice bag to put it in and is compact.

Being that there are only 4 built in rod points on the Westcott Spiderlite TD6, this softbox would not be compatible.

Not true... Just buy the broncolor balcar speedring. Or any speedring for that matter that supports balcar. This will do: https://<a href= http://www.bhphotovideo.com/c/product/884597-REG/impact_sr_pcb_speed_ring_for_paul.html target= _blank >www.bhphotovideo.com/c/product/884597-REG/impact_sr_pcb_speed_ring_for_paul.html</a>OR just get yourself a Paul C. Buff foldable octabox. It's well built and easy to assemble. WAY WAY easier then traditional octaboxes.

Yes! Just add a broncolor speed ring