Our Downtown Bike Lights easily mount to any bar or post and their super bright LED lights make you difficult to miss. They feature three settings—steady on, slow flashing, and quick flashing. Our Safety On prevents lights from accidentally turning on in your bag or pocket. The Downtown Bike Lights have a durable alloy shell and long runtime. Batteries are included, but please note that these lights have a battery protector that must be removed prior to initial use.