Proposal to improve the accuracy of test procedures measuring the stability of the photometric performance, including replacement of the test point HV with points 0.50U/1.5L and 0.50U/1.5R and of percentage values for the heat test at these points with an absolute value of 225 cd.

Proposal to improve the accuracy of test procedures measuring the stability of the photometric performance, including replacement of the test point HV with points 0.50U/1.5L and 0.50U/1.5R and of percentage values for the heat test at these points with an absolute value of 225 cd.