Yes that’s correct. And if you built 3 260xl you’d be paying 300$ a unit if you go this route
(2) PCb boards and heatsink 279$(2) + 30 shipping -$590 with shipping
QB288 V2 Rspec & Slate 2 Triple
Ultra High Efficiency LED Boards for DIY. QB288 has 288pcs Samsung LM301H LED
Price: USD 279.00
Driver $45 (3) 150
Wago 221-412 LEVER-NUTS 2 Conductor Compact Connectors 10 PK https://www.amazon.com/dp/B06XH6WW4D/ref=cm_sw_r_cp_api_glt_fabc_C9H5XR84SKMBN91HNQ8Z?_encoding=UTF8&psc=1
Hangers w/ clips $7(3) 21
Bayyee Rope Hanger Hanging Basket Plant Holders for Indoor and Outdoor LED Grow Light Aquarium Lighting Tank Lamp, Stainless Steel (16’’ Black 1Pair) https://www.amazon.com/dp/B01KLSSA8O/ref=cm_sw_r_cp_api_glt_fabc_VRMS274QGWG4T84ZXM5A?_encoding=UTF8&psc=1
Power $11(3) 33
Pinfox 6ft 16 Gauge 3 Prong Heavy Duty Replacement Power Supply Cord Cable 110V 115V 120V Pigtail for Universal AC Appliance, NEMA 5-15 Plug US SJT 16AWG (12A) https://www.amazon.com/dp/B06XRKXLVV/ref=cm_sw_r_cp_api_glt_fabc_S0SGDM0P4VWWBB2CS6A2
18g wire x2 (black & red) $16
RadioShack 18 AWG Solid Copper Hook-Up Wire - 25’ Spool, Black https://www.amazon.com/dp/B088F5B9M3/ref=cm_sw_r_cp_api_glt_fabc_AA7VD9ZS6AQN24XHCDXA
Xl heatsink $60
LEDPROFILES - US Stock - Heatsinks for Quantum Boards W | eBay
More Fins/Surface Area compared to Traditional Quantum Board Heatsinks. Affordable Heatsinks for DIY Growers. Heatsinks are not pre-drilled for PCB Boards. They can be easily drilled and boards can be mounted with self tapping screws.
$890 Total / 3 -300 unit w/ shipping
saving 210$ without adding shipping to the savings total