Yuyu brand low pressure sodium lamp ND20 Gp20Na-1 automatic polarimeter bulb

Description: Double Ring Brand Lianyou Yuyu Brand Low Pressure Sodium Lamp ND20 Gp20Na-1 Automatic Polarimeter Bulb ND20 (Gp20Na-1) low pressure sodium lamp The low-pressure sodium lamp can radiate a strong 589.0nm, 589.6nm sodium line, and has good monochromaticity. It is often used as a monochromatic light source in instruments such as polarimeter, refractometer, and polarimeter. GD20 (Gp20Hg) low pressure mercury lamp Low-pressure mercury lamps can radiate strong 253.7nm, 404.7nm, 435.8nm, 546.1nm, 577nm, 579nm mercury lines, often used as monochromatic sources in polarimeter, refractometer, polarimeter and other instruments.characteristic: Power: 20WWorking voltage: AC15±5VWorking current: AC1-1.3AOuter diameter: φ28mmLength: 155mmLamp cap: pin / screw ! Precautions: The lamp is ignited at the rated voltage. When igniting, the ballast must meet the requirements in series. Do not directly insert the power supply. The second and seventh wires of the bakelite are the lead wires of the lamp, and the rest are empty feet. Light bulbs and lamps are fragile items. Although we are very professional in packaging, it is inevitable that there will be damage during transportation. Please contact us if the buyer finds damage. Thank you! Our price depends on your purchase quantity, if you need more, you can contact us to get a good price. Thank you Payment1. We ONLY accept PayPal payments .2. Payments must be received within 7 days from the auction end date.3. We are not responsible for any custom duty or import tax. Shipping1. All items will be shipped within 48 business hours upon receipt of payment (except weekends and holidays). (If Payments are received on weekends or holidays, goods will be shipped on the following business day.Please understand that holidays and weekends are not regarded as business days.)2. All items will be shipped by E-Packet or Registered Airmail with tracking number.3. Buyer confirms (offers) address & Phone number after order item. Contact UsIf you have any questions, please contact us via the eBay Message System before leaving any negative feedback or open any dispute on PayPal...

Price: 36 USD

Location: 深圳市

End Time: 2024-12-03T18:27:22.000Z

Shipping Cost: 4 USD