Patent ID: 7445352

Claim:
An underwater light, comprising: a base having a light source housing chamber, a bottom tunnel and at least two screw holes communicating said light source housing chamber with said bottom tunnel; a substrate carrying a light-emitting device disposed in said light source housing chamber; a reflection cover disposed over said substrate; a watertight upper cover disposed over said reflection cover to be coupled to the upper edge of said light source housing chamber; two watertight walls connected respectively to said at least two screw holes that pierce through said bottom tunnel for insertion thereinto of at least two screw devices; and a bottom plate for clamping a power strip in said bottom tunnel to enable said two watertight walls to pierce through an insulating casing of said power strip for electrifying said at least two screw devices, whereby said underwater light is provided with a stable power source and an excellent property of watertightness.