Excellent fish-attracting effect! Highly visible!! LED Fishing Light This underwater light is much more noticeable than a chemical light! It flashes about 100 times per minute. The crystal case makes it highly appealing underwater. This small, lightweight LED fishing light is 6cm long and weighs about 7g. This listing is for a set of 2 blue lights. Energy-saving with button batteries! Great value! (Uses 3 LR41 batteries.) Of course, the batteries are replaceable. Batteries are included as shown in the image! LR41 button batteries can also be purchased at home centers. We also have other great fishing items on sale at bargain prices! Thank you. #FishingTackleForSale