specification: 1) adoption especially a little bit extremely high and bright give out light the diode( led) to act for the traditional lamp bulb 2) high brightness, pure color .consume the electricity produce, the life span is long 3) the signal mark can greatly small, combine arbitrarily, the outline has the watertightness and puts to bask, the anti- ultraviolet ray etc. function. 4) shape size:220 mm ¡á 390 mm ¡á 100 mm 5) power supply: ac220v ¡à 10% 6) color :650 nm( red wave-length)505 nm( red wave-length),505 nm( green wave-length) 7) temperature scope:-45 ¡æ-+75 ¡æ