PART NO:led cup light  MR16-5012
Housing Metal: Glass with cover
Demension(D×H)mm: 50×46mm
Input voltage: 10-30VDC & 10-18VAC
Wattage: 2.2W 
Beam angle:120 degree
LED Quantity:12PCS 5050SMD
LED Luminous Flux: Epistar 10×23mil 15-18Lm
Luminous Flux(Lm): 130Lm
Replace Halogen lamp:20W
Colour rendering index(Ra):70
Colour temperature(K):3000K-6000K
Average Lifetime(Hr):40000
Packaging Method:color box,White Box
Package Package:250PCS
Package  Gross weight:13Kg
Package  Size: 53×36×28cm

you can choose glass cover  or no glass cover on the top.
the lamp holder can be GU10  E27  E14 MR16 and so on