Replacement tube for 13 watt OTT-LITE© Natural Light Supplement© Plant Growth Lamps. Specially formulated to help plants thrive indoors. Provides the benefits of natural daylight, but without the heat, so it won’t dry out soil, leaves or blooms.
Developed by Garden Club of America award winner Dr. John Ott
• For use only as a replacement tube with specific OTT-LITE© lamps
• Low heat, energy-efficient — rated to last up to 10,000 hours