Description 400 w Metal Halide Metal Halide 400 w provides a spectrum as close as possible to that of the natural sunlight. This coupled with their intensity and energy efficiency, makes them ideal for indoor gardening. The bulbs range in size from 250 w to 1000 w, with 250 w and 400 w being the most popular. An abundance of blue light emitted by Metal Halide makes them the best light for propagation and vegetative growth, promoting short internodal length. Provides a spectrum as close as possible to natural sunlight. The best light for propagation and vegetative growth. High intensity and energy efficient. 400 w Metal Halide, makes them the best light for propagation and vegetative growth, promoting short internodal length.
