436 Mm, L, 21 W, 425 Ma, 10000 Hr, B4 Base, Pre-heat, Ultraviolet Lamp

• Type: Preheat
• Wattage: 21 Watt
• Lamp Type: L
• Lamp Base: B4
• Nominal Length: 436 Millimeter
• Life in hour: 10000 Hour
• Additional Information: Quartz Outer Diameter 15 Millimeter; Output Type Standard; Current Rating 425 Milliamp

STER-L-RAY® Preheat germicidal lamps are operated by a preheat start circuit that employs a relatively compact and economical ballast. The preheat circuit requires four electrical connections per lamp and a slight to moderate delay is needed to start the lamp. Some modern electronic ballasts are capable of instant starting a Preheat lamp. Available in Low Ozone and Ozone Producing versions. Our STER-L-RAY® brand of Germicidal Ultraviolet Lamps can be used as equivalent replacement lamps for over 250 equipment brands and 5,000 models of ultraviolet equipment besides Atlantic Ultraviolet's Air and Water Purifiers.

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