Wide Temperature Operating GLM is a special technology developed by Elite, which could be operated stably within -10~50℃. It has significantly solved the problem of narrow operating temperature limitation of normal green diode module. Elite’s GLM could be extensively used for harsh environment yield work which has greatly broadened the application range of green laser module. The other advantage of GLM is the low power consumption. The operating current of a 5mW GLM is only around 160mA and could be driven by batteries which make it possible to be hand held.