High Pressure Sodium Grow lights

High-pressure sodium lights are fast replacing the metal halide bulbs. HPS lights are not very expensive and can be used by gardeners regardless of their level of skill. Some of the plants that grow well with 150- Watt HPS are herbs, lettuce, and other kinds of small plants. 250 Watt HPS grow lights are ideal for small indoor gardens. Then if you need to cover an area of 16 square feet you can opt for 400- Watt HPS grow light. Sodium lights generate heat so if the bulbs are of higher wattage they need to be put at a distance from the pant lest your plant will die due to heat.