Patlite lkeh-402feul-rygb smart alert plus led light & horn, rygb light, dc24v the lkeh series attracts the operator’s attention by combining a loud horn and large signal tower. features: visible from great distance with ultra bright leds and 100mm diameter lens safe for use at high vibration environment with robust 2g vibration resistant design easy to control with only one common wire for both leds and audible signals ul, ce, rohs, ip53 volume is adjustable from 0 to 105db (at 1m) to fit various environments smooth led lens surface