25 Watt A19 Transparent Red Light Bulb by Generic Go to amazon.com Related posts Best darkroom lightbulb The 12 best darkroom bulb 2022 FeatureA-19 Bulb (4.5" Length, 2 3/8" Width)Transparent RedWatts: 25Volts: 120Base: Medium (Standard) Description25 Watt A19 Transparent Red Light Bulb