This BLUE light LED strobe is great for Lobster, Crab, or any other uses where a flashing light is suitable for marking a location. Uses 2 AA batteries and from my test the strobe lasts continuously for about a week. This test was constant and the brightness was still good after the week... Normally the strobe would be off during the light of day by means of the internal sensor but to turn it off manually you can partially unscrew the lens when not in use or simply remove the batteries. Has o-ring seal and the body of the light is a sealed single plastic housing.Visibility at night is close to 3/4 mile depending on conditions affecting visibility. The item "Blinky Lights Marine FISHING STROBE FOR LOBSTER CRAB HOOP NET GRN LED Pack of 8" is in sale since Sunday, June 21, 2020. This item is in the category "Sporting Goods\Fishing\Fishing Equipment\Lights". The seller is "cordelac" and is located in Long Beach, California. This item can be shipped to United States, Canada, United Kingdom, China, Mexico, Germany, Japan, Brazil, France, Australia, Russian federation, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.