Light set volt 100 xcrapid micro great performance light set volt 100xc 2 modes constant flash runtime 100lm 1 hr 100lm 5 hrs recharge time 15 hours usb rechargeable opticube lens rapid micro triple led 15 lumen output li ion battery usb rechargeable 4 modes constant flashing rapid and pulse runtime 3 30 hrs depending on mode automatic flash when low on battery