If you have a large growing area or plants that need special light, you don't want to use small panels to patch together lighting. This 8 bar from HORTLITE will fit 4'*4' or 5'*5' when fully assembled. It has 2,960 individual LED lights, available in white and infrared to simulate the sun. Despite having so many lights, this model has an aluminum cooling plate instead of a loud fan, which makes it worthwhile for commercial lighting but suitable for your house. You don't want to have a noisy cooling fan running in your house all the time.The specially deployed full spectrum fills in the omission of major photoreceptors and pigments outside the 660nm and 450nm ranges and is suitable for reproducing aging in indoor environments, increasing the radiant energy of red light at 660nm wavelengths in white light. The overall color temperature of the full spectrum is controlled at around 4000K. It offers a beautiful working environment and a more realistic color complex system with a CRI level of 88.8 Lighting Bars This indoor plants grow light has the popular design of 8 lighting bars focused on distributing more light as even as possible across the plant canopy. The slim design grow light fixture is foldable up to 180 degrees, making it small, compact, and easy to install. Heat Dissipation HORTLITE adopts high quality heat dissipation design (AL 6063) to increase heat dissipation. A very thin structure was designed to reduce the overall weight of the lamp by up to 40%, thus making it easier for growers to install.The New HORTLITE Vertical Series is designed for multi-level or single-level indoor growing. The Vertical Series is chainable, up to 100 lights can be run from a single power drop to save on installation costs and eliminate heat from the grow room. It also features programmable two-channel spectrum control to ensure optimum lighting in all phases of growth.HORTLITE Growing Lights is a super reliable constant-current LED driver that operates from 120-277V input with excellent power factor. The high efficiency of these drivers and compact metal case enables them to run cooler, significantly improving reliability and extending product life. Power cables with AC plugs and light hangers are included. The long power cord and dimming make it versatile enough to fit into almost any space, despite its size. It promises a service life of around 50,000 hours, so it will last a few seasons.