... time≥50000hrsWorking temperature-20~+50°C CertificatesCE&RoHS Advantage of led down light:1. Long lifetime: >50,000hours2. Energy ... conservation: compared with incandescent lamp , led bulb save over 50% energy.3. Eco-friendly: no UV ... Aluminum5. No flicking, no humming, lower maintenance costsApplication of led down light:widely used in office, sitting room, bedroom, ...