Adorama has the Flashpoint XPLOR 600 HSS TTL Monolight (AD600 TTL) for $499.00 after coupon code FPOCT2018, a $250 savings from the $749 regular price.
This kit has the XPLOR 600, a portable 600ws monolight powered by an internal Lithium Ion battery, capable of over 450 full power flash bursts on a single charge. It supports HSS and TTL, via an optional Canon R2 Radio (2.4 GHz) Transmitter (sold separately.) A great value, and tremendously well reviewed.
- Flashpoint XPLOR 600 HSS TTL Battery-Powered Monolight with Built-in R2 Radio – Bowens Mount (AD600 TTL) for $499.00 after coupon code FPOCT2018 at Adorama
For a Non-TTL version you get to choose R2 TTL remote for Free and you get $150 discount if you apply the same promo code so the final price for Non-TTL comes to $399.
Thanks — posting this!