This 3.5inch black puck light well fits in 12volt RV, travel trailer, campervan, motorhome, boat, yacht, etc.
Super slim design offers unobtrusive look, makes a perfect choice for limited space applications, you can also installed them above and below cabinets with the puck configuration.
Inbuilt with high-class LED chips, consume 0.1 amps of power. They last up to a decade and provide massive energy savings. 
It emits 110 lumens bright cool white light.It is IP66, strictly waterproof, makes it available in vehicles both interior and exterior environment. 
It is dimmable by an external dimmer switch(not included).
Installation requires no special tools. Simply install the light on surface of ceiling with screws(not included). 
A note: this light is hard wired. No battery. Black wire is positive, white wire is negative.

Specification:
Voltage: 10-15V DC
Wattage: 1.5W 
Current draw: 105mA 
Lighting color: cool white 
Luminous flux: 110 lumens 
Color temperature: 6000-6500K 
Housing color: Black 
Beam angle: 120 degrees 
Long lifespan: more than 50,000hrs 
Weight: 1.41 OZ / 40 g 
Dimension: 3.5 x 3.5 x 0.5 inch