Philips 4348 Sodium Polarimeter Lamp NOS New Old Stock Very Very Rare
| Manufacturer: | Philips Lighting |
| Lamp Power: | 4 Watts |
| Lamp Current: | 0.082 Amps |
| Lamp Voltage: | 50 Volts |
| Cap: | E12s (Nickel Plated Brass) |
| Bulb Finish: | Sprayed Black |
| Bulb Type: | Inner : T-6 | Outer : T-16 |
| Overall Length: | 97mm |
| Light Centre Length: | 67mm |
| Electrodes: | C-2V with triple carbonate emitter |
| Atmosphere: | 99% Neon, 1% Argon ? |
| Luminous Flux: | N/A |
| Luminous Efficacy: | N/A |
| Colour Temperature & CRI: | CCT : 1700K | CRI : Ra=0 |
| Chromaticity Co-ordinates: | CCx : 0.574 | CCy : 0.425 |
| Rated Life: | 100 hours |
| Factory: | Turnhout, Belgium |
| Date of Manufacture: | May 1981 |
| Original / Present Value: | Not Known |
Link for more detailed information: http://www.lamptech.co.uk/Spec%20Sheets/D%20SP%20Philips%20Polarimeter.htm