Four Ultrabright Nichia 5 Mm Le Ds, 30% Brighter Than Standard Le Ds. Current Regulated For Constant Output. 4 Output Modes Hi, Med, Low And Safety Flash. Low Battery Indicator Light. Tactical Quad: Adds Built In Red Lens That Slides Into Place When You Want To Preserve Your Night Vision. Turns On In Low Mode. Weight: 3.4 Oz.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }