Streamlight SL-20X Flashlight 5 Unit Bank Charger DC 21401 is an accessory for Streamlight SL-series. You can charge simultaneously five SL flashlights. The DC 12 Volt Stinger 5 Unit Bank 2.5 Hour Charger works with SL-20X, SL-20XP, SL-35X. The versatile SL-series of rechargeable personal lights has the power and durability you need for almost any job.