Manufacturers of toroidal power transformers.

• See also:
• Masterformat 2004
• 26 12 00 - Medium-Voltage Transformers
• 26 22 00 - Low-Voltage Transformers
• 26 22 13 - Low-Voltage Distribution Transformers
• 26 50 00 - LIGHTING
• 26 51 00 - Interior Lighting
• 26 55 00 - Special Purpose Lighting
• 26 55 23 - Outline Lighting
• 26 55 29 - Underwater Lighting
• 26 55 53 - Security Lighting
• 26 55 59 - Display Lighting
• 26 55 61 - Theatrical Lighting
• 26 55 63 - Detention Lighting
• 26 55 70 - Healthcare Lighting
• 26 56 00 - Exterior Lighting
• 26 56 16 - Parking Lighting
• 26 56 19 - Roadway Lighting
• 26 56 23 - Area Lighting
• 26 56 29 - Site Lighting
• 26 56 33 - Walkway Lighting
• 26 56 36 - Flood Lighting
• 26 56 68 - Exterior Athletic Lighting
• 33 73 00 - Utility Transformers
• Masterformat 1995
• 16270 - Transformers
• 16500 - Lighting
• 16510 - Interior Luminaires
• 16520 - Exterior Luminaires
• 16550 - Special-Purpose Lighting
• 16580 - Lighting Accessories