Impulse - BlackImpulse is the ultimate personal multi-task light! Powered by 2 lithium coin cells, the Ultrabright LED burns up to 36 hours and has 3 modes: low, high and flash. With its quick release clip, hat clip, and a range of colors to choose from, you’ll want one for each of your keychains and backpacks! Impulse is UL; Class 1, Division 2 approved.Specifications:Power: 10 LumensLamp: 1 Ultrabright LEDBurn Time: 48 HoursBatteries: 2 2016 Lithium Coin CellWeight:14 GramsUL Rating: APPROVED / Class I Division 2 Groups A, B, C & DUL Temp Code: T6WARNING: This product can expose you to chemicals including BISPHENOL A (BPA) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.