Use with low voltage street lamp poles. Three lamps per post. I was tempted to buy the double brightness version but went for this one and I'm glad I did. They put out just the right amount of lumens.
Pros
Long Life - 25,000 Hours (used 3 hours a day) - Warranty - 100% Return and Replacement Guarantee. Eco-friendly LED light bulbs - no mercury, no flicker and no UV