Sunraise QB2000 is a fanless, dimmable LED quantum-board fixture built for small to mid-size tents. Drawing about 200 W from the wall, its square four-bar layout (approx. 22.6 x 22.6 in) is designed to provide dense coverage in compact canopies. The manufacturer specifies a full-spectrum array combining 3000K and 6000K whites with 660 nm deep red and 740 nm infrared. Recommended coverage is up to 3.5 x 3.5 ft for vegetative growth at roughly 18–20 inches, and about 3 x 3 ft for flowering at around 12 inches. The passively cooled aluminum heat sink keeps operation quiet, while an onboard dimmer allows 0–100% output adjustment for different stages. The QB2000 uses SMD3030 LEDs and an AC85–277 V input driver.
