Ultra Sun® T5 HO Fluorescent Grow Lamps 6500K
These high-quality T5 HO lamps are excellent for all indoor gardening applications. Use the color of your choice for the growth phase of your plants. Mix and match for a full spectrum effect. For use with T5 HO fixtures. 4 ft unit is 54 Watt and 2 ft unit is 24 Watt. Both units are blue.