... alarm... 4) Certificate: CE, CCC Multi-signal lamp, Signal tower lightFeatures:Using ultra-high brightness LED as the light, multi-layer structure, the color shade ... and attractive appearance, low price.Main technical parametersSound way: Sound signal, alarm sound, musicRated voltage: DC12V, 24V, AC110V, 220V. ... Color: Red, yellow, green, blue, white.Power: ≤ 5W. Multi-signal lamp, Signal tower light,