1、100% power: Press mode button once Uses: Flashlight or emergency Lighting, camping lights, home lighting 2、50% power: Press mode button twice Uses: Flashlight or emergency Lighting , camping lights, home lighting (This mode can be selected when the battery's power consumption is too high or it takes longer to illuminate) 3、25% power: Press mode button three times Uses: Flashlight or emergency Lighting, camping lights, home lighting (This mode can be selected when the battery's power consumption is too high or it takes longer to illuminate) 4、Flashing light: Press mode button four times Uses: For low visibility conditions or emergency situations 5、SOS Signal light: Press mode button Five times Uses: For emergency situations when light and alarm is needed *Press mode button again to turn bulb off