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SQ Pro Line The outstanding performance of the SQ Pro line was achieved through a square shape LED bar design built with latest generation top bin White Red and Far Red diodes and world class P-Tek controllable drivers. The LED bars are covered with a thin layer of Clear Glue resulting in higher light transmittance of 99% without light loss IP65 rating extended lifetime of diodes and extra corrosion resistance. The SQ300W Pro array creates a uniform spread of light at short distance from the crop ensuring excellent penetration of canopy without hotspots and excessive heat. The advanced heat sink and use of passive natural convection has eliminated the need for a fan decreasing noise output and significantly improving the life span of the fixture as it has no moving parts. Full-SpectrumThis grow light LED is designed with all grow cycles periods in mind from propagation to vegetative and flowering this fixture may be dimmed allowing you to adjust PPFD levels produced without losing efficiency. P-Tek SQ Pro LED grow lights use a blend of white deep red far red LEDs to produce a highly efficient light source calibrated to provide high intensity stable and uniform output for optimal light absorption. More ControlIn addition the SQ300W Pro LED fixture can be externally controlled with a P-TEK Digital Lighting Controller featuring light timing automated dimming 1% increments temperature safety control Sunrise Sunset Mode for up to 100 fixtures per controller. Universal Control Systems CompatibilityP-Tek Pro LED Fixtures can be fully controlled with either the P-Tek Digital Controller or with any other Control System that utilises 0-10V output signal. Even if your Universal Controller has an RJ port interface you can still run our LEDs by using a signal converter RJ to 0-10V control adaptor.