A freight protection apparatus is disclosed which includes an enclosure for protecting freight shaped in the from of an open box, having an opening, first, second, third, and fourth sides, and a top portion, which enclose a chamber. The zoom lens includes a plurality of lens groups and performs zooming by changing an inter-group distance. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The enzyme may be glucoamylase and the polysaccharide may be starch. The safety interlock completes the ballast power supply circuit as the lamp housing fully inserts in the projector to allow power supply for illumination of the lamp.