Rapid LED’s Dual Emerson/Violit Booster Board Set is a two-bar supplemental LED kit designed to add targeted wavelengths around flowering. The set powers two boards (choose 2× Emerson, 2× Violit, or 1+1) with an included 30 V supply and DC splitter. Each Emerson board uses Cree XP‑G3 photo red and XP‑E2 far‑red diodes at 660 nm and 730 nm; each Violit board uses SemiLEDs UVA at 365–370 nm and 390–400 nm. Draw is approximately 30 W per Emerson board and ~40 W per Violit board; the mixed set totals about 70 W. Coverage is stated as 4'×4' to 5'×5' for the dual set (about 2'×4' per board). Boards include Mean Well LDD‑700LS drivers and accept optional 2.5–6 V PWM dimming and canopy heatsinks.