I installed my lights less than 2 weeks ago. Last night I noticed that there appeared to be less lighting washing the walls so I decided to take a look at the up lights. What I found was that all of the up lights had dried beetles lying on top of their lenses. Enough beetles so that about 40% of each lens' surface was covered and diminishing the amount of light they were putting out. Is this normal? Does this sort of thing generally happen this quickly (40% blockage in about 10 days)? Is there a way to stop it or reduce it with some sort of cover, or do I just need to remember to blow the bugs off every with my blower every time I do my yard?