high yield lighting floralux 150-watt high pressure sodium (hps) complete grow light, bulb included high yield lighting the high yield lighting floralux complete 150-watt hps system, the original stealth grow light, is recommended for small plants/indoor gardens. can also be used as supplemental lighting or for wintering plants indoors — low wattage, high output, air cooling capable — louvered vents for heat dissipation. fixture features tempered glass lens, and can be fitted with a 4" flange (sold separately) and connected to fans for forced air cooling. included enhanced horticultural spectrum 150-watt hps bulb can be used for all growth phases, and provides the best light spectrum for flowering growth. 'plug and play' - no external ballasts needed - includes hanging hardware for quick setup, and 10' power cord plugs into a standard household grounded outlet. all products ship in plain, discreet packaging.