RC Concept RC3 & RC4 Turbo-style glow plugs
RC Concept have introduced two new Turbo-style glow plugs. The RC4 super hot is best used in ambient temperatures between 15°C and 45°C while the RC3 ultra hot was developed for a lower 0°C to 25°C range. Both are made by Japanese company O.S. Engines which will make for exceptional quality and durability.
Source: RC Concept [rcconcept.net]