This compact, 2" X 4" warning light features 18 high intensity LEDs and 16 flash patterns. The unit will also synchronize simultaneously or alternately with other units or ECCO 3510 and 9000 Series Hide-A-LED models. At only 0.34" deep these surface mount LEDs offer exceptional warning capability in an extremely slimline package. Maintenance free, long-life operation with low amp draw.