... 2. 50,000-80,000 hours lifespan.3. Easy mounting, recessed,direct-mount,put-in,suspended that can ... , the same illumination energy saving of about 60%.3,Longevity ---- the light of long-life, 10 ... the instructions. 2. Turn off the power .3. Connect the power supply input to the suitable mains ... you can use. Four Ways for installation: recessed,direct-mounted,put-in,suspended are optional Application of ...