... and shell materialAluminum alloy and PCApplication:The white led tube light can be applied to hotels, conference / meeting rooms, factories & offices ... of LEDs, no trouble of replace parts of normal fluorescent tube.9. No flash, AC driving, stable light, protect eyes.10. Good ... of LEDs, no trouble of replace parts of normal fluorescent tube.9. No flash, AC driving, stable light, protect eyes.10. Good ...