Material: quartz
Diameter : 15mm (T5) or 19mm (T6)
Base face length: 436mm (15W) 589mm（20W） 894mm (30W) 1199mm (40W)
Lamp cap : G13
Lamp cap material: ceramic or aluminum 
Ozone and ozone-free are available 
Service life : 8000 hours
Package: 2PCS/ foam box or 1PCS/ pearl wool