Pair (2) MaxLume 400 Watt Bulbs consist of one #ML400HPS and one #ML400MH bulb. Both bulbs are from the brand Maxlume and are designed for use in metal halide and high pressure sodium lighting technology. With a wattage of 400W, these bulbs provide intense and efficient light for indoor gardening and hydroponic setups. New unused open box condition. $50 total for the pair. Free shippingvia USPS Ground Advantage..