The lowest high bay is only for 39.6USD,the wattage of the lamp can be 50w,80w,90w,100w,120w,150w,200w,250w and 300w About the high bay: 1) Wattage:50w,80w,90w,100w,120w,150w,200w,250w,300w 2) The size: W280*L280*H130,W365*L365*H186,W450*L450*H275 with internal driver W280*L280*H252,W365*L365*H252,W450*L450*H183 with external driver 3) Beam angle:60D/90D/120D optional. 4) CCT:2500k-6500k can be suitable for your demand.