HL-MN ballast(Slim ballast):Special use for bulb factory,It is the world thinnest ballast.can be fit for each type of bulbs. _disibledevent=46*40*24cm Pls highly notice our MN ballast parameters:that is very usefull 1.It is the thinnest ballast in the world,it is conventent for transportation and installment. 2.Its structure is reasonable,Uses the entire automatic computer to paste the piece,error coefficient is lowest. 3.It has ROHS certificate. 4.It is very popular now and in the future. 5.Withstanding high temperature and it is easy to radiate. 6.The volume is smallest. 7.The ballast switch current is low,that will not damage the bulb.It is use for all bulbs.