Please consider Lumens instead of Wattages
Smart LED Lights with less wattages can give more lumens if you are using high lumens per watt technology with smart switches to change color output and to change wattage of the same light to reduce energy cost

6000K Cool White
5000K Day Light (Neutral White)
4000K Warm White (Yellow White)
3000K Sharp Warm White

IP54 for outdoor in open canopy/ceiling use
IP65 for outdoor use to simple protection of water & dust
IP66 for outdoor use to protect water jets & complete protection of dust
IP68 for use in submersible & underwater applications