Lopolight 5nm 225° Masthead Steaming Light, vertical mount w/0.7 meter cable
The Lopolight 301-011 is a 5 nautical mile masthead light – also called a steaming light – with a 225° white sector from dead ahead to 22.5° abaft the beam on either side. It mounts vertically – typically on the forward face of the mast or on a radar arch. Housing: silver or black anodised aluminium, or white ceramic-coated aluminium.
Masthead Light or Steaming Light – Not a Top-of-Mast Light
Despite its name, a masthead light does not go at the top of the mast. COLREG Rule 21 defines it as a white light over the fore-and-aft centreline that shows forward over 225°. On a sailing yacht it is fitted part-way up the forward face of the mast and is switched on only when motoring – with the engine driving the boat, a sailing yacht counts as a power-driven vessel (Rule 3) and must show a masthead light, sidelights and a stern light (Rule 23). The light at the very top of the mast is the tricolour or anchor light. On a motorboat the masthead light sits high on the centreline, on the mast, arch or superstructure.
Application & COLREG
Rule 22 asks for a 5 nm masthead light on vessels of 20–50 m (about 65–165 ft), the range Lopolight specifies. Under 50 m a second masthead light, abaft of and higher than the forward one, is optional (Rule 23); from 50 m it is mandatory and the masthead lights must reach 6 nm.
Complete the Navigation Light Set
Key Features
- 4.1 W at 10–32 V DC (12 and 24 V systems)
- IP68; anodised aluminium housing, PMMA lens, A4 stainless steel screws
- Pre-wired 0.75 m shielded marine cable
- Microprocessor control: projected 50,000-hour life with an end-of-life warning blink
- Approved to COLREG72, EN14744, IEC 60945, IACS E10, USCG, ABS, M.E.D., DNV, LR
Installation
Red wire positive, black negative; a reversed connection does no damage. Use a slow fuse or breaker below 2 A, keep the housing isolated from ground, connect the cable screen to ground and align the light with the centreline. Two M6 × 8 mm mounting screws are included.
and then Add to Home Screen.
