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SANSI LED Motion Sensor Outdoor Lights, 3600lm @Amazon $40 $39.99
36W (250W Incandescent Equivalent)
Dusk to Dawn Waterproof Flood Light, ETL Listed,
Black or white
The Camel says that this is very close to the all time low price (excluding a time or two where coupons were available.)
These are really bright. The bulbs are not replaceable, so when one dies, you will have to replace the entire fixture.