E40 F539-H ceramic screw lamp holder types:
1.Main material:porcelain;
2.Metal:copper,iron,aluminium;
3.CE certificate;
4.OEM available;
5.High quality,factory price.

E40 lamp holder types Specification:

1.Main material:porcelain,ceramic;
2.a wide range of lamp holder types: E10, E12,E14,E17,E27,E40 to B22.
3.Our superior quality on-time delivery and competitive price will be satisfied with you.
4.Metal:Copper/Iron/Aluminium/stain steel,according to customers' choice.
5.OEM & ODM are available.
6.Voltage:250V
7.Electric current:4A
8.Package:standard export packing,carton package;
9.Time of delivery:20 days after order confirmation
10.Payment:30% T/T,balance against the copy of B/L or 100% irrivocable L/C at sight
11.Soonest service ,postively reply within 2 hours
12.Contactor: iron plated copper, or copper accoding to client’s requirement.
13.Terminal: copper/iron/zinc alloy

MR16 lamp holders refers to the maximum outer diameter of 2 inches with a multi-faceted reflector lamps in the lighting industry, MP11 is than MR16 smaller lamps, MR: Multiface Reflect, multi-faceted reflector (lamp cup), followed by numbers indicate lamp cup diameter (in units of 1/8 inch) the MR16 caliber = 16 × 1/8 = 2 inch ≈ 50mm

E27, E14 refers to the size of the ordinary screw cap lamp, E27 is what we usually use the incandescent lamp, E14 lamp holder is better than its smaller size than E27 E40. G12 lamp holder is a single-ended metal halide lamp of the tubular