Lientec LED’s Cree CXB3590 Set – 50W Glass Lens is a DIY COB grow‑light kit built around Cree’s 36 V XLamp CXB3590. Each COB is driven at 1,400 mA (about 50 W per COB), and kits are offered in multi‑COB configurations labeled 100 W, 150 W, 200 W, 300 W and 450 W total. The set includes an Ø133 mm heatsink with mounting hardware, Ideal 50‑2303CR holder, EU power cable, single‑core wiring, thermal paste, and choice of glass lenses in 60°, 90° or 120°. Available color temperatures span 2700 K to 6500 K with 70, 80 or 90 CRI options. Mean Well constant‑current drivers are paired to the build (ELG‑100‑C1400A up to HLG‑480H‑C1400A), with model selection depending on the chosen total wattage.

