...If your plants don't get enough light they stretch for it. Becoming weak and leggy. Increase your bunk by using multiple low wattage lights that you can place close to your little buddies without burning em. Light intensity deminishes exponentially. 1000w bulb 1 ft away=1000 lumens 1 1000w bulb 2 ft away=250 lumens 1/4 1000w bulb 3 ft away=111 lumens 1/9 400w bulb can be kept 1 ft away all the time.