Solid State LED MR 16 GX 5.3 only use world"s top 5 chip and provide brightest LED. Lifespan over 50,000 and with 3 years warranty. Detail Sepc : *CRI : 70*350 lm* GX5.3 base* 12V AC/DC*True White*-20C ~+40C operating Temp* Application: Accent/Display Lighting, Ambient Lighting, art galleries, decorative room lighting, high-end retail lighting.