national standard switch (with tube without lamp)(国标开关（带管不含灯）) american standard switch (with tube without light)(美规开关（带管不含灯）) european standard switch (with tube without lamp)(欧规开关（带管不含灯）) british standard switch (with tube without light)(英规开关（带管不含灯）) australian standard switch (with tube without lamp)(澳规开关（带管不含灯）) 220 v25w ceramic heating lamp 50mm(220v25w陶瓷加热灯50mm) 220 v50w ceramic heating lamp 50mm(220v50w陶瓷加热灯50mm) 220 v75w ceramic heating lamp 50mm(220v75w陶瓷加热灯50mm) 220 v100w ceramic heating lamp 50mm(220v100w陶瓷加热灯50mm) 110 v25w ceramic heating lamp 50mm(110v25w陶瓷加热灯50mm) 110 v50w ceramic heating lamp 50mm(110v50w陶瓷加热灯50mm) 110 v75w ceramic heating lamp 50mm(110v75w陶瓷加热灯50mm) 110 v100w ceramic heating lamp 50mm(110v100w陶瓷加热灯50mm) japanese switch (with tube without lamp)(日本开关（带管不含灯）) 220 v25w ceramic heating lamp 60mm(220v25w陶瓷加热灯60mm) 220 v50w ceramic heating lamp 60mm(220v50w陶瓷加热灯60mm) 220 v75w ceramic heating lamp 60mm(220v75w陶瓷加热灯60mm) 220 v100w ceramic heating lamp 60mm(220v100w陶瓷加热灯60mm) 110 v25w ceramic heating lamp 60mm(110v25w陶瓷加热灯60mm) 110 v50w ceramic heating lamp 60mm(110v50w陶瓷加热灯60mm) 110 v75w ceramic heating lamp 60mm(110v75w陶瓷加热灯60mm) 110 v100w ceramic heating lamp 60mm(110v100w陶瓷加热灯60mm) national standard adjustment (with tube without lamp)(国标调节（带管不含灯）) american standard adjustment (with tube without lamp)(美规调节（带管不含灯）) japanese adjustment (with tube without lamp)(日本调节（带管不含灯）) european standard adjustment (with tube without lamp)(欧规调节（带管不含灯）) british standard adjustment (with tube without lamp)(英规调节（带管不含灯）) australian regulation adjustment (with tube without lamp)(澳规调节（带管不含灯）)

1-19(1-19个) 20-999(20-999个) ≥ 1000(≥1000个)