Set of 10 - Great Value! Essential for fishing rod tips! Rainbow, red, green, and white flashing. LEDs flash and strongly attract fish. Automatically lights up when placed in water. Built-in battery, non-replaceable. Illumination time: approximately 50 to 100 hours. Some may last over 100 hours. Fishing light, fish attracting light, multi-color, colorful, green, LED fishing light Hairtail, Japanese Spanish mackerel, large mackerel, mega horse mackerel, squid, pond smelt, rosy seabass, kobudai, filefish, cuttlefish, bigfin reef squid, spear squid, Japanese flying squid, smelt, nomase, drop-shot fishing, tenbin, rockfish, electric float, electric bobber - Material: Acrylic - Function: LED lamp that lights up when placed in water (Battery not replaceable) - Size: 28mm (length) x 15mm (width) (Please allow for some margin of error) - Connection: Swivel 【Recommended Points】 ・Built-in battery & no troublesome operation! Automatically lights up when placed in water. ・Compact size and easy to use! Powerful illumination despite its small size. ・Great value with a set of 10! Can be set up simultaneously at various points! ・Affordable enough to share with friends. Perfect for night fishing, deep-sea fishing, and squid fishing! Use in combination with electric floats/bobbers for double the effect! Thank you for reading to the end. For those who have added this to their watch list, Green 10 pieces + 3-color rainbow 10 pieces = a total of 20 pieces for only 2480 yen including shipping! Limited quantity, first come, first served. Please contact us through the question section if you'd like to purchase.