Optimized Spectrum for Flowering and Fruiting In the flowering and fruiting stages of plant growth, the VG40R supplies on the vital 650-665nm red light spectrum. This spectrum acts as a signal for plants to shift from vegetative to reproductive growth, resulting in the formation of flowers and, ultimately, high-quality fruits. Economical Solution for Maximum Yield Designed with smaller indoor gardens in mind, the VG40R operates efficiently at just 40W (20W per light bar) while providing a core coverage of 2ft by 2ft（60cmx60cm）. This setup allows growers to maximize their yields within minimal space, ensuring optimal results. Daisy Chain and Functional Diversity The VG40R offers convenience to growers with its effortless installation and the option to daisy-chain up to 32 LED lights. It seamlessly integrates with a variety of indoor planting systems, such as bottom, side, under-lighting, and top lighting, effectively addressing issues like slow growth and narrow leaves in tall plants caused by insufficient light. IP65-Rated Water Resistance Equipped with a unique transparent waterproof lampshade, the VG40R's light panel safeguards the diode and circuit from moisture. This feature ensures the proper functioning of the light in highly humid environments, without compromising its lifespan. Long Lifespan and Warranty The VG40R Plant Grow Lights Indoor boasts an impressive 50,000-hour lifespan backed by a 5-year warranty, offering growers added confidence and peace of mind in its durability and performance.