No screw on the surface, inside lens+ outside glass, left and right rotation.

Parameters

Wattage:100W/200W/300W/400W/600W/800W/1000W
Lumen efficiency:>140lm/W±5%
Lumen flux:14000lm±5% /28000lm±5% /42000lm±5%
/56000lm±5%/84000lm±5%/140000lm±5%
Input Voltage:AC85-265V
CCT:4000K/5000K/5700K/6500K
CRI: >Ra70
Beam Angle:15°/30°/60°/90°/120°
Material:Die Cast Aluminum + PC lens+Toughened Glass
Housing Color: Black
Warranty: 7 years
Protection class:IP66&IK08

Only you need this model, then we will definitely provide premium quality of lighting as a feedback for your trusting.