【Auto On/Off Timer】Equipped With A Convenient One-Button Switch. As The Remote Control Is Easy To Lose And Insensitive, The Lamp Can Be Automatically Turned On And Timed At 6, 10 Or 12 Hours Without The Need To Purchase An Additional Timer.【Ip68 Waterproof】As This Lamp Is Waterproof, It Can Be Completely Submerged Or Attached To The Side Of The Fish Tank.You Can Put It Anywhere You Want With A Strong Suction Cup.【Adjustable Brightness】The Brightness And Switch Of The White And Blue Leds Can Be Set From 10% To 100% Respectively Or Simultaneously.Adjustable White/Blue/White And Light Blue Colors Ensure Lush, Clear And Vivid Plant Landscape Of Aquariums.【Convenient Installation】Flexible Suction Cup Is Easy To Install, So The Lamp Is Firmly Attached To The Tank Wall.3.6W Fish Light For 20 - 40Cm Fish Tanks; 6W For 30 - 50Cm Fish Tanks; 8.4W For 40 - 60Cm Fish Tanks.【Widely Used】Widely Used In Aquariums, Fish Tanks, Pools, Rockies, Pet Cages, Reptile Tanks, Etc.Attention: Do Not Put The Power Adapter And The Switch In The Water.