Actually very usable light at a very  reasonable price.

Patented* & specially designed as direct replacement for incandescent and halogen light bulbs used in many navigation fixtures and interior lights such as aqua signal series 25, 40, 41, 42, 50, etc. as well as Attwood, Perko and many other fixtures. Chart Light, Recessed Light, G4 LED, MR11 LED, Bayonet LED, MR16 LED, Edison LED... 

Testimonial from a Hallberg-Rassy 34 owner.

Polar Star 40^TM 

For aqua signal series 40, 41, 42, 50, etc. as well as Attwood, Hella, Perko, and many other navigation lights.

Gold plated contacts.

11~15VDC ~0.1A. Continuous current, no RF noise.

White Polar Star 40^TM for anchor, steaming, and stern nav lights.

Red Polar Star 40^TM and Green Polar Star 40^TM for port and starboard nav lights.

Bi-Color Polar Star 40^TM for bi-color (red/green) nav lights.

Tri-color Polar Star 40^TM for tri-color nav lights.

Polar Star 25^TM 

For aqua signal series 25 and similar navigation lights.

Gold plated dimpled festoon contacts.

11~15VDC ~0.09A.

White Polar Star 25^TM for anchor, steaming, and stern lights.

Bi-Color Polar Star 25^TM for port, starboard, and bi-color (red/green) nav lights. 

Saturn Ring^TM 

General purpose recessed waterproof LED light.

Soothing warm white output.

11~15VDC ~0.12A.

Spot Saturn Ring^TM

Equivalent to a 30W incandescent beam; bright enough to read a book.

Flood Saturn Ring^TM

Equivalent to a 10W incandescent beam; a very good ambient light.

Mars Dome^TM 

General purpose surface mount dome LED light.

Mars Dome^TM

A three-position switch to select two brightness levels.

Red Mars Dome^TM

A three-position switch to select between red or warm white light.

Nighthawk^TM 

Versatile LED chart light.

11~15VDC ~0.12A..

Nighthawk Stick^TM

Cigarette lighter plug version.

Red Nighthawk^TM      

A three-position switch to select between red or warm white light. 11~15VDC   ~0.04A (Red)      ~0.08A  (White)    

Red Hawk Stick^TM

Cigarette lighter plug version.

G4 MR11 Magnum Ring^TM 

Specially designed to replace most "third degree burn " small hot G4 and MR11 halogen bulbs. 

Soothing warm white light.

11~15VDC ~0.08A.

Bayonet Magnum Ring^TM 

Specially designed to replace most single and double contact bayonet incandescent bulbs.

Soothing warm white light.

11~15VDC ~0.08A.

MR16 Magnum Ring^TM 

Specially designed to replace most MR16 halogen bulbs.

Soothing warm white light.

11~15VDC ~0.12A.

12VDC Edison LED^TM 

Specially designed to replace most medium screw base Edison bulbs.

Soothing warm white light.

11~15VDC ~0.12A.