Flora Hydroponics 400W 120 Volt HPS Cool Tube Digital Grow Light System & PH Control Kit Bundle Pack Bundle Pack includes Grow Light Sytem and Flora Hydroponic's exclsive PH Control kit Flora Hydroponics exclusive test kit contains 8oz of pH Up & pH Down, Indicator Test Kit and Pipette Offers the most compact and effective way to get bright light over, or in, your growing area Streamlined design Excellent hanging vertically down into the plant canopy or for enclosed growth chambers