e-Bulb - 400W - donut series induction lamp, 5000K
Round Induction light, Circular Induction Light, Donut Induction lamp

Features:

Directly retrofits Metal Halide or High Pressure Sodium
Circular shaped bulb distributes an even light distribution in a full 360° range 
Produces a bright white light at 5000K for greater safety and visibility
Long lifespan with low heat emission
Contains no electrodes, no filament to be damaged
Environmentally friendly: utilizes 100% recyclable solid-form amalgam mercury
Ferrite ring with wire coil structure reduces power loss and aids in heat dissipation
Maintains strong luminance over lifetime
Accommodates with round or oval shaped fixtures
Energy savings of over 60% over HID sources
Electronic universal ballast features high power factor (>0.98), reliable ignition, flicker-free, low loss, instant start / re-strike, and constant output
UR, CE and FCC certified
Life Rating 60,000 – 100,000 hours