1 Salary Deferral Contribution. 2  In 2015,100% of W-2 earnings up to the maximum of $18,000 or $24,000 if age 50 or older can be contributed to an Individual 401k (2014 limits are $17,500 or $23,000 if age 50 or older). 3  Profit Sharing Contribution. Salary Deferral Contribution. 2  In 2015,100% of W-2 earnings up to the maximum of $18,000 or $24,000 if age 50 or older can be contributed to an Individual 401k (2014 limits are $17,500 or $23,000 if age 50 or older). 3  Profit Sharing Contribution.
LED whitening at home is safe but not as effective as in-office treatment. However, one benefit of the light is that it actually acts as a timer to help keep patients keep the whitening product in contact with the teeth for the right amount of time.
LEDs are very efficient when compared to standard lights such as incandescent lamps or halogen lamps. Whilst incandescent lamps offer efficiency of a good 10 lm/W, and halogen lamp around 20 lm/W, the efficiency of white LEDs is between 70 and 100 lm/W (depending on the type and light color).