Electronic Transformers input:220V output:7.5KV .etc Neon Electronic Transformers Series: Characteristic: Input: 220V 50/60Hz Output:7.5KV Min loading ( m ) :3 meter (tubing diameter 12mm mercury/argon) Input: 220V 50/60Hz Output:9KV Min loading ( m ) :6 meter (tubing diameter 12mm mercury/argon) Input: 220V 50/60Hz Output:9KV Min loading ( m ) :8 meter (tubing diameter 12mm mercury/argon) Input: 220V 50/60Hz Output:12KV Min loading ( m ) :10 meter (tubing diameter 12mm mercury/argon) Input: 220V 50/60Hz Output:15KV Min loading ( m ) :12 meter (tubing diameter 12mm mercury/argon)