AL450 Strobe Aluminum LED Strobe Light. The Bigblue AL 450 Strobe LED delivers great luminosity at 450 lumens in 270 degree light beam. The sleek and ultra-compact aluminum body can withstand the most rugged diving situation. It offers 6,500K sun white light output. On/ Off controlled by a reliable push button with battery indicator which can be one hand operation. The light operates at AAA x 3. Lanyard included.