HORTIKING 600w MH Bulb Metal Halide Blue Spectrum Grow Light, e40 Screw Fitting

HORTI KING Metal Halide grow lamps use a blue spectrum which plants need when in a growth stage. This prevents plants stretching and instead gives a short dense plant ready for flowering. Colour temperature: 6500k - Perfect Light Spectrum for Growth Stage E40 Screw Fitting. All HORTI KING bulbs carry CE Mark. PLEASE NOTE: All (MH) Metal Halide Lamps and (HPS) High Pressure Sodium require a Ballast to power them. Please do not purchase unless you fully understand this. If you need any further information, just let us know!