Unilite ps h4 led helmet mountable headlight 200 lumen unilite ps h4 p align left this led helmet mountable headlight from unilite is a well designed robust and weatherproof source of light ideal for all outdoor situations manufactured to a high standard courtesy of the industrially tough polymer housing the headlight has a host of outstanding features including the sliding diffuser for focused or flood lighting features 5mm red led for night vision 6 lighting modes 90 deg rotational