pro-emit’s DIY-M-KIT 2 long Series 600W is a modular, dimmable LED grow light kit designed for square grow areas up to 150 x 120 cm. The 600 W configuration uses eight LPG 3‑channel boards (75 W each) on passive-cooled 76 cm heatsinks. Each board combines 81 Samsung LM301B diodes at 5000 K, 45 LM301B at 3000 K, four Cree XP‑G3 PhotoRed, and two Cree XP‑E2 FarRed; all three channels are independently dimmable and 0–10 V compatible. System output is listed at 1680 µmol/s with 2.8 µmol/J efficacy. The assembled frame measures 113 x 80 x 8 cm and weighs about 18 kg. Rated lifetime is 50,000 hours. The kit ships with Mean Well drivers (HLG‑320H‑C1400B and LCM‑25) and all required cables and hardware.