QB 288 V2 Rspec are made USA by Horticulture Lighting Group. Each board has 272 highest flux and lowest voltage bin Full Spectrum LM301B LED. 16 Osram SSL 660nm Deep Red LED enhance spectrum and unbeatable performance.
No Thermal Interface Material or paste is required.
May require an Aluminum plate or heatsink if running 75+ watts. Heatsink requirements depends on application and power.