Technical Parameters: 1. 21°C(70°F)resistance: 1.3±0.15Ω — 1.7±0.15Ω 2. Fire current: 0.40A /0.37A 3. Safety current: 0.25A 5S/0.18A 5S 4. Testing current: 0.5MA Specifications: GW: 8 kg Length : 1 M Packing: 10/100, 1000 pcs per carton Carton Dimension: 39*28*24 cm Mininum order : 1000 pcs Attention: Pls first connecting the fuse and igniter well, then put the igniter inside the firing system. Size: 0.3M, 0.5M, 1M, 2M, 3M, 4M, 5M Pls see the video of igniters: http://v.youku.com/v_show/id_XMjM0NjM2NTI4.html