Streamlight's High Lumen (HL) models has been expanded to its Stinger LED, Stinger DS LED and Strion LED series of lights. The flashlights use LED technology to provide industrial, automotive, outdoor and other users with extreme brightness, delivering up to 640 lumens. They provide three microprocessor-controlled variable intensity modes. The Stinger LED HL and the Stinger DS LED HL deliver a blinding 640 lumens on high, 340 lumens on medium and 170 lumens on the low setting. The Strion LED HL delivers 500 lumens on high, 250 lumens on medium and 125 lumens on low.