Light level standard. Light sensing - on at dusk, off at dawn. Long-life LED - no bulbs to replace. Energy efficient - uses just pennies worth of electricity per year! This Jasco product comes with a 90-day limited warranty. UL listed. www.byjasco.com. Questions? Contact us at 1-800-654-8483 between 7:30 AM - 5:00 PM CST. Visit www.byjasco.com for warranty details and product registration. Made in China.