SunBlaster T5 HO 2700K Replacement Bulb - 4ft

Optimized Bloom Spectrum for Flowering, Fruiting & Finished Growth

The SunBlaster T5HO 4 ft 2700 K Replacement Bulb delivers a warm, red‑rich light spectrum designed to trigger bloom, bud and flower development in indoor and greenhouse growing environments. Drawing 54 W and running cool, this bulb offers consistent performance without excess heat — perfect for multi‑tier setups, bloom racks, or finishing benches.

With a colour temperature of 2700 K, this lamp emulates late‑day natural sunlight, stimulating photoreceptors that drive flowering, fruit production and resin/essential‑oil formation in many plants. For fruits, vegetables, ornamentals or flowering crops, 2700 K T5HO tubes are among the most effective fluorescent options to push plants into bloom.

Rated for about 10,000 hours of use, the SunBlaster 2700 K replacement lamp maintains strong lumen and PAR output throughout its lifespan — growing performance you can count on from early bloom through to harvest.