California from January 1, 2012, prohibit the sale or production of high-intensity discharge lamps,

and more than 9 in. in length, compact fluorescent lamps (CFL).

The reason is that the level of harmful substances in these lamps beyond the EU RoHS Directive

(Directive 2002/95/EC) in the standard.

Hazardous substances under the RoHS Directive covers substances include :

lead (0.1% maximum allowable concentration, MCV), mercury (0.1% MCV), cadmium (0.01% MCV),

hexavalent chromium (0.1% MCV), Polybrominated biphenyl (0.1% MCV), polybrominated diphenyl ethers

(0.1% MCV).