Pulse start capable START UP : Take 2 to 3 minutes would light up completely, both Please wait 5 mins at further after the power shut off before striking again MIMICS SPRING TIME LIGHT: Enhanced blue and violet spectrum along with high PAR (photosynthetic active radiation) output to stimulate vegetative growth, facilitating short internodal spacing and vigorous growth Great for commercial applications where a large vegetative footprint is required High quality quartz glass for consistent spectral output and PAR production Protopia Metal Halide 6K lamp is the best for the vegetative stage of growth.The MH 6K lamp emits cool blue lights, matching the color of sunlight during spring. This part of the spectrum encourages short bushy growth and tight internodal spacing in plants. Performance Data Lamp Wattage (W): 1000 Light output ( Lumens @ 100hours): 95000 Lumens per Watt (lm/W): 100 Rated life (Hours @ 10 hour/ start): 6000 Correlated Color Temperature (K): 6000 Color Rendering Index (CRI) or (Ra): 70 Photon flux (μmol/s): 1350 Burning Position: HOR±15°