Light source :12pcs LED Power : 0.4W Lampshade : dolphin model Lampshade material : plastic Lampshade holder : plastic shell colour: bright blue, pink Height : 250mm electricity cable : 120cm telephone cable length : 120cm Features: 1adopt long life and low decay leds. The least using time is 30,000hours 2 low power suppply and free of touching electricity and potential danger . 3 Adopt 12pcs high effiency LEDs . The power is 0.4W . it is equivalent to 15W incandescent lamp. The power consumption is really low . 4 steady current lighting , no flicker and no radiation 5 don’t contain harmful material and light pollution . 6 close to the natural light , It is suitable for reading book in the light and camping . It is the first choice to prevent stopping electricity . It is a good gift to send parents or friends who live in frenquent stopping electricity places. Power supply : AC220V, AC110V , computer USB interface , 3 pcs 7﹟batteries , telephone, AC220V+ telephone, AC110V+ telephone( different power supply , different price !) Two usage LED desk lamp the power supply and telephone interface can not used at the same time . namely when the power is supplied by household power , you cannot connect telephone socket and telephone cable .The switch can be normally used when eletricity is supplied by power . The switch does not work when the electricity is supplied by telephone .You need to remove the telephone cable when you turn off LED desk lamp