Check the listing for details. VIVOSUN VSFD4500 LED Grow Light, 450W Removable Dimmable Plant Grow Light. Color: Black, Condition: New. Listed at 359.99 USD. About this itemHigh Efficiency and Uniformity: This grow light has a 40% higher PPFD than comparable HID lights and a higher conversion efficiency (2.8μmol/J); Uniform and dense PAR map means deeper light penetration for healthier plants all while consuming only 450W, for max efficiencyDimmable and Convenient: Equipped with a dimming knob or dimmable functions via controller; The retrofit features 6 levels of light intensity from 0-100% to cover the full stage of plant germination, growth and flowering, including 0% to 25%, 50%, 75%, 100% and EXTRemovable Light Bar, Built-in Driver: A removable light bar helps keep your storage room tidy while also allowing making installation easy; a built-in driver hidden inside the light bar makes the lamp slim and easy to installFull Spectrum with UV/IR: Full spectrum coverage from 380-780nm, including 450nm, 660nm, 730nm and rich photosynthetic UVA; great for all stages of plant growth; warm white light promotes flowering; blue light promotes germination, and red for greater potencyDaisy Chain Capability & Intelligent Control: Daisy chain capability with up to 30 lights; can be used in grow tents and is compatible with the VIVOSUN GrowHub controller, which opens up advanced features and remote control via the VIVOSUN App