Please go on testing, if after the long time testing, the power hasn't gone down to 7.5W, that will be still normal
to our spot. As our R&D do a special design for the temperature protection in the spot, which keeps the power
and luminous decay can be under control. Another words, it's not real decay, when the
environment temperature
come lower, the power and luminous will be high again, normally the power region is 7.5W-10W. As you know,
now on the market, for most high power lights, the light decay cannot be controlled, and the result is real fast
fading or burnout, but ours will not. So, sincerely hope this phenomenon now is explained out and could be acceptable.