Do you have any experience with these, or any other LED lights? This looks like a large investment, so I don't want to buy something unreliable for this price.
These should be fine in the accommodation, and good value if the lifespan is actually as stated. We fittted 240V LEDs in the bathroom last year (Zenigata 4W at £20 each, lifetime of 15 years allegedly) and two have gone within 14 months.
The only cautionary tale I have re. 12V LEDs is from the time we tried to replace the masthead tricolour bulb in our Aquasignal 80 with an LED from Ultraleds. It interfered with the VHF and we have to give up on it in the end.