M660 Self-Contained LED Lantern For Buoys up to 4 NM Range
M660 Self-Contained LED Lantern For Buoys up to 4 NM Range as with all modes of transport, the lighting systems used by the night are imperative to the vehicle’s safety. Ships, being enormous constructs, need lighting systems too! In fact, the lighting system in place for a vessel is integral to the safe navigation of the vessel; in fact, it is one of THE MOST important aspects of nautical studies emphasised in college as well as for competency exams.
The primary function of marine navigation lights is to aid the prevention of any major accident from happening. All boats – whether big or small are required to have night lights as a part of the navigation systems. This system was introduced in the year 1838 by the United States and then was followed by the United Kingdom in 1849.
In the year 1889, the International Maritime Conference was established by the United States to establish proper guidelines to prevent marine accidents. In the year 1897, these rules were officially adopted internationally. The colour of the lights that were required to be used as specified by a set of rules passed in the UK. On the basis of this rule, three colours were chosen: red, green and white. Even today, marine navigation lighting consists of these three colours.
Lights aren’t just to indicate one’s own status as a vessel for identification by other vessels in the vicinity but also vice versa. It is probably the most important aspect when complying with COLREGS in order to ascertain the status of any vessel in order to take the appropriate action as per COLREGS. PART C of the COLREGS published by the IMO is titled as LIGHTS AND SHAPES and lays out all necessary information with regard to lights and the specificity of their usage for different types of vessels.
There is a pattern in which these lights are set up on the ships and boats in conjunction with the International Association of Lighthouse Authorities (IALA) Buoyage Systems. The pattern can be explained below :
- There is a light at the right-hand side of the boat (right side when facing the bow of the vessel known as the starboard side) which is green in colour.
- There is a light at the left-hand side of the boat (left side when facing the bow of the vessel is known as the port side) which is red in colour.
Both the sidelights show an unbroken light over an arc of the horizon of 112.5 degrees such that from right ahead it can be viewed to 22.5 degrees shaft on either side.
- A white light is also placed at the back of the boat (known as the stern side). This shows an unbroken light over an arc of the horizon of 135 degrees and is fixed to show the light 67.5 degrees from right aft on each side.
- The mast of the boat also has to have nightlights. The colour of this light is white. Two masthead lights are in place, with the second one shaft of and higher than the first, when the length of the vessel is greater than 50 metres. Shows an unbroken light over an arc of the horizon of 225 degrees and so fixed to show the light from right ahead to 22.5 degrees abaft on either side.
M660 Self-contained LED lantern for buoys and minor beacons, up to 4 NM Range The M660 is a high-performance, long life, easy-to-use and cost-effective self-contained solar LED marine lantern. The M660 features a Li-ion battery pack that extends the service life of the lantern up to eight years. M660 has four different mounting options and can be programmed and controlled with Bluetooth® Control.
• Standard IALA colours Red, Green, White, Yellow, and Blue Ventilated battery compartment.
• Adjustable intensity and range.
• Vertical divergence > 8º (FWHM).
• High-efficiency solar cells.
Maximum Power Point Tracking (MPPT) for optimal energy collection.
• Premium grade UV resistant, polycarbonate/polysiloxane co-polymer body and lens material.
• IP 68 rated. O-ring sealing with waterproof vent. The battery case is also IP68 (duration under test).
• Li-ion battery, optional dual pack.
• Programmable with Bluetooth® Control and IR-Programmer.
• Optional ON/OFF switch, external charger and charging port.

Technical Specification M660
Optical Performance
Maximum fixed intensity | ||||
40 cd | 42 cd | 71 cd | 52 cd | 18 cd |
Main Technical Specification
Lens visual/Mechanical diameter | 177 mm |
Lens material | UV stabilized Polycarbonate |
Light source | High Power Light Emitting Diode (LED) |
Vertical divergence | >8° (FWHM) |
Solar module | High efficiency cells; MPPT |
Battery | Li-ion (IEC 61233) |
Degree of ingress protection | IP 68 |
Weight | 0.8 kg |
Overall height (excl. bird deterrents) | 105 mm |
Installation (adapter) | 3 x M6 on 150mm and 3 x M12 on 200mm |
Installation (pole mount) | 3 x #10-14 60mm or 73mm diameter |
Product codes
Colour | M660 unswitched | M660 switched | M660 dual battery | M660 charge port |
red | M660R | M660R-S | M660R-2B | M660R-C |
green | M660G | M660G-S | M660G-2B | M660G-C |
white | M660W | M660W-S | M660W-2B | M660W-C |
yellow | M660Y | M660Y-S | M660Y-2B | M660Y-C |
blue | M660B | M660B-S | M660B-2B | M660B-C |
Product code example: M660RSC2B
- M660R is Sabik/Carmanah code for M660 in red with a selection of switched with charge port and dual battery
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Reference: jfcmarine.com