Lamp Construction of Dependable's Mercury Vapor HID lamps are actually made with two bulbs: an inner bulb (the arc tube) and an outer bulb. The purpose of the outer bulb is to keep air out of the inside portion of the lamp and to provide an insulated atmosphere around the arc tube in order to mainta...

If you have any specific lighting questions: Email us or call us Toll Free at 1-800-336-BULB PHONE: (215)-624-6500 Specializing in Industrial Lighting FAX: (215)-624-8060 P.O. Box 39291 E-MAIL: dependableproducts@msn.com Philadelphia, PA 19136 Copyright 2005 Dependable Products Inc. FLUORESCENT IN...

If you have any specific lighting questions: Email us or call us Toll Free at 1-800-336-BULB PHONE: (215)-624-6500 Specializing in Industrial Lighting FAX: (215)-624-8060 P.O. Box 39291 E-MAIL: dependableproducts@msn.com Philadelphia, PA 19136 Copyright 2005 Dependable Products Inc. TWIN-ARC High ...

With Instant Restrike Capability These lamps are designed to provide exceptionally long life and reliability as well as instant re-ignition after momentary power interruptions. They are provided with two identical arc tubes that operate one at a time. The second tube is ready for instant starting if...

If you have any specific lighting questions: Email us or call us Toll Free at 1-800-336-BULB PHONE: (215)-624-6500 Specializing in Industrial Lighting FAX: (215)-624-8060 P.O. Box 39291 E-MAIL: dependableproducts@msn.com Philadelphia, PA 19136 Copyright 2005 Dependable Products Inc. Please select ...