Upgrade design 1: upgrade the waterproof function, IP68 waterproof, you can put the bulb in the water completely, you don't have to worry about the product water, extend the life of the Upgrade design 2: The pool lights are equipped with solar panels, no need to install batteries or manually turn off the light. The turns on automatically at night and turns off the light automatically during the day. High quality material: UV-protected PC + ABS material, structure Heat-resistant waterproof silicone ring prevents water infiltration and guarantees long service life. Thickened ABS exterior with anti-corrosion protection and a pronounced waterproofness. These underwater pool lights are amazing indoor and outdoor night decoration light sources. Long working hours: Automatic solar charging during the day, only need to charge 6 hours. The can run for 3-5 nights, eliminating the hassle of changing batteries Wide range of uses: They are suitable for wet and dry places, such as swimming pool, fish tank, pond, swimming pool, garden, vase, party, festival decoration, Christmas, Halloween, wedding, vase bottom, hot tub, pond, home, bathroom, fountain._x005f_x005F_x005f_x005F_x005f_x005F_x005f_x000D_Tip: Make sure the cap is screwed on correctly and tightly clockwise before putting it in the water. Solar Panel Battery: High efficiency 0.66W solar panel, 1800mAh Ni-MH battery Charging time: 6-8 hours in bright sunshine Lighting time: 3-5 nights after charging (constant lighting all night long) Light up the top and bottom emitting LED hearth with high brightness Product material: UV-protected PC + ABS material Waterproof IP Level: IP68 Operating Temperature: -25 65~65