Japan Design Technology New Model Blade High quality and waterproof (Suitable for under water) Aluminum Alloy Case Easy and convenient to use: ABS Stand inside the package. Rubber Suction Cup are optional accessories Adjustable clamped range Suiable For Any 4mm-10mmFish Tank Glass Energy-efficient: High Performance View Spectrum Super Bright With Energy Saving White,Warm & Blue three-color light: looks more beautiful and clear out of the aquarium. Available at many size from 1 feet to 5 feet Only 7mm Thin Ｄ series are old model cannot use for under water. DF series are new model can use for under water, wider Angle, 20% more brightness