1, when being electrified, the lamp will be in fi=ull bright. After 40s , it will douse. After 2_sec delay,the induction can active the normal working. Ther are two cases: 2, Enviroment illummination <10Lux(+30) : the lamp light with 20% power and pyroelectric infrared start to work: when the people comes out the sensing range ,the brithness genreted with 20% power will switch to be full bright .when enviorment illiumination >10lux( +30%), the lamp will douse and pyroelectric infarared dose not work. OPPLE is the No. 1 Online lighting Brand. It is also the ONLY brand in India with a TRUE FLICKER-FREE and LOW GLARE lighting range. Other benefits of OPPLE LIGHTING include: (1) Sparkling Effect, (2)No UltraViolet Radiation, (3)No Infra-Red Radiation, (4)They are Instant On and finally, (5)Contain NO heavy metals like mercury. (Yes, CFL and tubelights may contain mercury and may cause health issues to susceptible individuals incase of accidental breakage only.) So OPPLE LIGHTING brings to you PREMIUM QUALITY, FLICKER FREE, BRIGHT, LONG LIFE, ENERGY SAVER, and INDOOR POLLUTION FREE lighting solution