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![Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com](https://m.media-amazon.com/images/I/61ZhOa3N0PL._AC_SL1500_.jpg)
Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com
![Philips SOX 18W low pressure sodium lamp -- 12 minute warmup time lapse with spectral lines - YouTube Philips SOX 18W low pressure sodium lamp -- 12 minute warmup time lapse with spectral lines - YouTube](https://i.ytimg.com/vi/wT4h4iUwmyo/mqdefault.jpg)
Philips SOX 18W low pressure sodium lamp -- 12 minute warmup time lapse with spectral lines - YouTube
![Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com](https://m.media-amazon.com/images/I/61ZhOa3N0PL._AC_SS450_.jpg)