How to choose Size:Size 1 = US Power PlugSize 1 = EU Power PlugThis product made of high quality materials， beautiful and concise， easy to operate. Suitable for fish tanks and aquarium.Features:- High quality SMD LED beads， high brightness- Ultra-thin design， beautiful and concise- Dedicated power supply design， moreenergy-efficient- Telescopic rod design， easier to use- Suitable for fresh water and seawaterSpecifications:Model: ZJL-60Shell Color: BlackLight Color: blue&whiteLamp beads:- 60 white light- 12 blue lightDimension: 50x10x 2 cm / 19.68''X3.94''X0.79''Apply aquarium: 50-70cm / 19.68''X27.56''Temperature: -5℃ -45℃Input Voltage: AC 110-240VPower: 11WFrequencyRange: 50/60HzPackage Includes:1 x Fish Tank Lamp2 X Extend Bracket1 x AC/DC Adapter1 x User Manual How to use:1.Open the package and check lights for damage or cracks. If not，thenfollow the steps below.2.Remove the lights，check whether the power mains consistent labeling requirements.3.Lights are mounted on the tank4.Connect the power supply to the lamp5.Push switch to select mode Precautions1.Transformer is not waterproof， please stay away from water and moisture.2.The operating voltage must be compatible with the transformer voltage requirements.4.Do not touch the transformer with wet hands.5.Turn off the power before cleaning the lamp.6.When this product is not working properly，by professionals for maintenance.7.This product is not a toy， please stay away from children.NOTE: For different monitors， the color may vary slightly. Besides， please allow some errors of manual measurement， thank you for your understanding!