This is the Pactrade Marine Stainless Steel LED Navigation Green Starboard Red Port Light that is made of Polished Stainless Steel 304 Housing and is suitable for most boats usage. LED Color: Red and Green. LED: 1pc (1W Green)/ 1pc (1W Red). LED Beam Angle: 120 Degrees. This product features the horizontal mount navigation lights where green starboard is 112.5 Degrees and red port is 112.5 Degrees respectively with a combination bow of 225 Degrees. Its visibility is 1 (ONE) Nautical Mile (NM). Two types of mounting plates are provided with the item for your desired installation. Hardware included with the set. Working Voltage: 10-30V DC. Wattage: 2W. Effective Lumen: 50LM. It has a waterproofing and dust-proofing standard of IP:66. This product is CE and RoHS certified. The color and dimension shown in the listing are only for reference and may vary among devices used for viewing. Product Dimension (for just the light): 2-1/2" x 2". Thickness = 3/4". Screw holes distance: 1-1/4". Thickness of mounting plates: 1/8". Item Number: PE011075.