4 ft. (12-pack) Focused Spectrum gro LED Tubes (Closeout)

4 ft. Toggled Focused Spectrum grow T8/T12 horticulture/gro tubes (12-pack) are engineered to provide improved growing performance for green leafy plants using selected LED output wavelengths. Peak wavelengths of 455 and 640nm are optimal for light absorption leading to better plant growth. Ideal for garden, hydroponic, and greenhouse applications. T8/T12 Retrofit LED (Installation kit included) High efficiency grow light technology (Only uses 16 watts) Reduces excess heat in grow operations and water evaporation Triangular tube shape engineered for uniform, wide-beam light distribution and low-heat allowing lamps to be placed much closer to plants PPF 29.84 μMole/sec, PPF Efficacy 1.8 μMole/Watt PBAR 34.12 μMole/sec, PBAR Efficacy 2.1 μMole/sec/Watt Commercial-grade polycarbonate shatterproof tube construction, suitable for damp locations Long-life 50,000 hours Voltage: 120-277 VAC As with all Toggled direct-wire LED products, grow tubes are mercury-free, energy efficient, and d