Features: The designed are simple and beautiful, and its suitable for fish tanks of various types, so that the fish tanks shows the nature. Pleasant appearance, heat dissipation, do not fear of temperature. Bulb is detachable and Removable, replaceable bulb Threaded interfaces, safe and stable Specially designed LED, which can promote the photosynthesis of aquarium plant and suitable for water plant growing. Recommended voltage: 220V. Specifications: Material: aluminum-alloy Functions: Lighting Power: 20-W,40w Size:Approx. 13cm/5.12in,20cm/7.87in Color:silver Note :Only light bulbs, no lamps holder Package Includes: 1xAquarium LED Light note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color of the item.