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Canadian designed WATT-A-Light™ LEDs are tried, tested and true! Built for marine, off-grid, and solar requirements, these LED bulbs will not rust your fixture and provide incredibly high lumens for such low voltage. Available for your 12VDC, 24VDC, 32VDC, and 48VDC systems. Shipping worldwide from Canada.


Perfect for Solar, Hydro, Off-Grid, Boat, Trailer, and RV lighting applications! Use indoor and outdoor from any direct current system.

Superior Corrosion Resistance

Watt-a-Light's copper/chrome bases won't rust your fixture.

Low/No Radio Interference

Advanced design provides no-very low radio interference.

Easy Installation

Standard E26/E27 medium Edison screw base fits all regular household fixtures when replacing incandescents and compact fluorescents.

Extra Long Life

Turn on and off as many times as you want! These bulbs have unlimited On/Off cycles and last up to 40 times longer than incandescent and 5 times longer than CFL.

Exceptional Light Coverage

270 degree light coverage efficiently puts those lumens to work to provide you with perfect lighting for your work and home activities.

Extra wide voltage range

Our bulbs easily accept battery fluctuations from 10-80 volts. 

Cold weather tolerant

Immediate starting even when cold so you never have to wait for your light to get to full brightness.

Not recommended for enclosed fixtures.

Customer Reviews
4.6 Based on 5 Reviews
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John a.
United States United States
Solar lighting in a mountain cabin

These bulbs are excellent, although we found the 3w version too dim (but the 5w are great!)

Susana L.
United States United States
DC light for tiny off-grid house

After having 2 bulbs not last more than a year from a cheaper competitor, I decided to try Watt-A-Light.I appreciated the customer service with a real person trying to find most economical way to ship to USA, and what would work best in my house. The bulb is working well and hoping it will last a long time.

George M.
United States
Solar home lighting

Sunlight bulb is a little weird but it works in back rooms etc. warm light is fine.

Donald J.
United States
We use the bulbs on our boat

Bulbs are quite bright considering they only expend 10W. We'll test them over the winter to see how well they hold up is a salt air environment. Looks like there should not be any issues. Wish you had a 20W bulb as well. Really need bubs equivalent to a regular 100W bulb.

Andrew B.

Working well so far. Only have two install as a test, and wish I had ordered the whiter ones, but their behaviour seems to be better than the other bulbs I’m using.