Miniature Flange based bulbs are common flashlights bulbs are known as P13.5S bases. The actual base of the bulb measures 9mm and the flanged collar measures 13.5mm.
P13.5S base led flashlight bulb, High power LED replacement bulbs for most common flashlights provide greater intensity, brightness and longevity over traditional incandescent flashlight bulbs. LED flashlight bulbs can increase battery life 20x longer, saving you money in bulbs and batteries. P13.5S LED Lamp Flashlight Replacement Bulb Torches Light. T10 LED light bulbs, E10 LED bulbs 3V LED 4.5V LED, 6.3V LED, 8V LED P13.5S base led bulb, P13.5S LED Lamp Flashlight Replacement Bulb Torches Light. Different color available. LED MINIATURE BULB, T-3 1/4 LED 36 Degree Viewing Angle LED INDICATOR LIGHT Polarity: Bottom contact must be connected to positive.You might need to reverse the polarity of the batteries (THE BULB NEEDS A SPECIFIC POLARITY TO WORK) Best results when the viewer has a bright white interior (especially the top where the lamp is pointed to) It will not work with vintage transformers (because they are AC) For some people the light will appear too blue. In this case, I recommend the halogen bulb.
Operation voltage: 3V LED, 4.5V LED, 6.3V LED, 18V LED, 24V LED, Any voltage between DC 3V to 24V
Color option: Warm white, Cool white, Red, Green, Blue, Yellow
Power: Max 1 watt
Lumen: Max 110 lm for cool white
Size: 24mm length, Cap 10mm diameter
Beam angle: 36 degree
Working Temperature: -35 to +55degree Celsius