SunBlaster 4' Replacement T5HO 2700K ALL

SunBlaster T5HO replacement lamp, 4′ (48"), 2700K colour temperature. Replacement lamp for SunBlaster T5HO fixtures. SunBlaster recommend replacing T5HO lamps every 10,000 hours of use to maintain growing output. In their words: just because they look bright, doesn’t mean they grow right — lighting that looks bright to the human eye is seen differently by plants.