You are bidding (9) 1000w Metal Halide Horticultural bulbs. 1 of these was fired once, the other 8 are new in the packaging. Brandname "SolarMAX GOLD - all phase high output metal halide horticultural lamps". From the box - "SOLARMAX Gold All Phase High Output MH lamps are designed to produce significantly more orange / red wavelength than other halides. Similar to a 3000 deg. Kelvin light source, these lamps are excellent for fruiting / flowereing applications and because the are metal halides lamps the have enogh full spectrum energy for all a plants needs from 380 to 760 nanometers". Please see for more technical information. These bulbs use a standard M42 mogul socket. They do not require capacitors and ignitors like HPS lamps - connect to the ballast and go! The wide spectrum of these lamps make them great if you do not wish to use seperate lamps for vegetative and fruiting/flowering phases.