Square Perfect 9016 SP50 50-Watt 3000K Tungsten Photo Replacement Bulb for 3085, 3086, 3090 and 9015 This bulb is a direct replacement bulb for the following kits: Square Perfect 3085 SP200 Professional Kit. Square Perfect 3090 SP300 Classic Kit 50 Watt 3000K tungsten light bulb Optimal color temperature makes this bulb perfect for photography