Optimization of Helium Inflating on Heat Dissipation and Luminescence Properties of the A60 LED Filament Lamps

Table 1

Thermal conductivity of several common gases.

Gas	Hydrogen	Helium	Argon	Neon	Oxygen	Nitrogen	Air
Thermal conductivity (W/(m·°C))	0.163	0.144	0.018	0.049	0.024	0.023	0.023