Groplanner GP300 is a 300 W O Series modular LED grow light consisting of two quantum-board panels with WiFi app control for 20–100% dimming and scheduling. It uses a targeted full spectrum built from 3000K and 5000K white LEDs plus 660 nm deep red and 760 nm far‑red. Groplanner specifies a total light output of 716 µmol/s at 2.75 µmol/J. The passive finned heatsink and acrylic LED cover enable quiet, fanless cooling and protect the diodes. Official PPFD maps indicate an approximately 40 × 40 inch footprint at 12–20 inches hang height, suitable for compact tents, and the system is described as a 400 W HPS replacement. Rated life is 60,000 hours, with UL, DLC, CE and RoHS certifications noted by the manufacturer.
