They have to be hardwired into a circuit and turning it on/off only by a wall switch.
Brand
Olafus
Wattage
200W
Luminous Flux
18000lm
Color Temperature
6500K
Type of Bulb
LED
Waterproof
IP66
Beam Angle
120°
Material
Die-cast aluminum +PC
Input Voltage
100-120V AC
Product Weight
58.91 oz
Product Dimensions
12.01 x 7.75 x 1.73 inches
Package Contents
2 X 200W Flood Light
1 X User Manual
How does it turn on? Does it need a switch?
Does the light have dusk to dawn function?
No. This item is NO motion sensor, NO solar, and NO dusk to dawn, it's only controlled by the wall switch.
Can you replace the bulbs?
No, like any other led fixture you'll have to replace the fixture when it stops working.
Are these dimmable?
No
Are they 15000 lm each?
Yes
190 watts each or both in total?
190 watts each