Comments about 3500 Series LED Navigation Lights:

In order to install, the lens cover must be removed to locate front mounting location. The lens covers do not come off easily. You are to turn the lens counter clockwise to remove. The factory says you need to push down and turn (not in instructions)On a 80 degree day I heated the lens, and only then was I able to remove the lens. The hole required is 1 1/8 to accept the bottom of the unit. I modified the bottom tab, so only a small hole is needed for the wires. Over designed without practicallity in mind.

Comments about 3500 Series LED Navigation Lights:

Purchased for durability and dependability at night on small boat at premium price. After 6 months Red light has failed. Cause is LED lamp has cracked and split open from inside. Beleave that poor manufacturing technique is cause of failure.
Note that my boat is stored indoors and has had very little use since LED light was installed.

Comments about 3500 Series LED Navigation Lights:

Installed on a small Amanzi inflatable, less than a yr old, lights used 3 times and the port light is out. 10 yr bulb?
Only resolution is to send light back to manufacturer, no field support avail from local marine parts outlets. Dissappointing.
All that said, I did have very professional conversation with an Attwood customer service ,representative. We will see how quickly they can turn around a replacement so I can install.

Comments about 3500 Series LED Navigation Lights:

Replaced my old Hella dual color with the dualcolor LED by Attwood one year ago. The lamp is small in size and has a bright light. The reason why I bought the lamp was the ability to switch position of the red and green LED which made it possible to mount upside down in the bow of my sailing vessel. The lamp has only been in use when motoring. Using a tricolor in the mast top when sailing. Now the green sector of the Attwood is gone after maximum 30 hours of use. Would expect more from a lamp which is rated for 50,000+ hours use and have got 10 years warranty according to Attwood. Their customer service is also poor with no answer after more than one week.

Comments about 3500 Series LED Navigation Lights:

I found the same problem as Jay. Port, red LED failed after 1 year.

Comments about 3500 Series LED Navigation Lights:

Not required on a 12' boat, but I fish at night in a bay, so for safety I bought a bow light that I thought would last. The red light went out after less than a year. Upon inspection of failure, I can see where the led was not sealed correctly from factory, allowing h2o (and corrosion) into the led chamber causing failure. 10 yr warranty helps, but the 2 hr drive back to WM doesnt really make it worth it. Do not depend on this product. I guess I paid for the warranty, not a quality product as I had hoped.

Comments about 3500 Series LED Navigation Lights:

Used the light on my boat 34 ft. Cruiser ,it was easy to insttall and works great no more faulty old fashion bulbs that corrode.

Comments about 3500 Series LED Navigation Lights:

These lights were installed on my charter boat and can be seen a long ways off to keep others out of my way and me out of there's. If poor light out they light up the bouy's going in and out of the channel.

Service and delivery comments:

They came earlier than promised and very good packaging.

Comments about 3500 Series LED Navigation Lights:

Easy to wire

Service and delivery comments:

Took one day to get to store

Comments about 3500 Series LED Navigation Lights:

Very well designed for a clean install. There is space to fit the wires under the dome. Very bright. I have only had installed for 1 month, but I have very happy so far