This Philips lamp features superior color quality and very crisp white light.
Incredibly high 1.95 PPF (photosynthetic photon flux) per watt per second light source.
4,200°K color temperature lamp.
High 92 CRI,33,000 initial lumens (105Lm/W).
High 90% lumen maintenance at 8,000 hr.
High 85% maintenance at 20,000 hr.
Double glass jacketed lamp is rated for either open fixture use (without glass lens) or enclosedfixture use (with glass lens).
Bi-pin lamp base.