Which brings me to my point. Our beloved MCA issued guidance on this matter in 2009, MGN 393 (M+F), Navigation Light Units: Maintenance and the Use of New Technology Light Sources, such as Light Emitting Diodes (LEDs), as Navigation Lights on SOLAS and non-SOLAS Vessels.
https://assets.publishing.service.gov.u ... GN_393.pdf
If your vessel is coded (charter, sailing school, fishing trips, porpoise bothering etc) i.e. SOLAS compliant, then if you have LEDs you must have either an alarm fitted warning when the LED luminous intensity falls below the required by the COLREGS, or, a maintenance plan that changes out the LED before the degradation starts.
Apparently we can only use OEM approved bulbs in our navigation lanterns, hence aftermarket LEDs fitted to lamps designed for incandescent bulbs, may not stand up to scrutiny.
I came across this note when looking at new LEDs for my boat from Boat Lamps: -
https://boatlamps.co.uk/pages/navigatio ... nformation
What do you think, life is too short to worry about rules for the obeyance of fools, and the guidance of wise men?Important: In common with other replacement LED lamps on the market, it is not possible to have any sort of marine authority certification for individual replacement bulbs. These LED lamps are easily visible at distances exceeding 3nm in standard fixtures and are the brightest replacement LED bulbs available. Given the vast array of navigation light fittings installed on marine vessels, it is the user's decision alone whether to use our products to retrofit any particular light fitting used for navigation purposes.