Meijiu’s MJ GP 800W is a compact LED toplight designed as a 1:1 replacement for 1000W HPS. The fixture draws 800 W (±5%) and outputs a stated 2560 µmol/s at up to 3.2 µmol/J efficacy. It uses Samsung LM351H diodes in white, deep‑red, and blue to deliver a balanced full spectrum suitable from propagation through flowering. The unit supports 0–10 V dimming with OFF/25/50/75/100% steps and can be controlled individually or in groups via Meijiu’s master controller or other compatible 0–10 V systems. Key build features include IP65 ingress protection, passive cooling with a cold‑forged aluminum heat sink, and a high‑quality Sosen driver. The MJ‑GP‑800W weighs 15.5 kg and is listed with a 50,000‑hour lifetime and 120° light distribution.