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2. R40 (New York City Subway car) - Wikipedia

   en.wikipedia.org/wiki/R40_(New_York_City_Subway_car)

   halogen light bulbs: Track gauge: ... The R40 was a New York City Subway car model built by the St. Louis Car Company from 1967 to 1969 for the IND/BMT B Division.

3. Infrared lamp - Wikipedia

   en.wikipedia.org/wiki/Infrared_lamp

   Incandescent light bulbs use a tungsten filament heated to high temperature to produce visible light and, necessarily, even more infrared radiation. Round bulbs, often tinted red to reduce visible light, provide infrared radiant heat suitable for warming of people or animals, but the power density available is low.

4. List of automotive light bulb types - Wikipedia

   en.wikipedia.org/wiki/List_of_automotive_light...

   Similar US bulb: HB2 (9003) 12V: ECE nominal luminous flux: 1,650 / 1,000 lm ±15% Available with P45t base to upgrade old headlamps designed for R2 bulb H7 1 12 V: 55 W 24 V: 70 W PX26d USA, Japan 12V: ECE nominal luminous flux: 1,500 lm ±10% H8 1 12 V: 35 W PGJ19-1 USA ECE nominal luminous flux: 800 lm ±15% H8B 1 12 V: 35 W PGJY19-1 USA H9 1

5. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   The length (sometimes also referred to as "height") of any two-ended cylindrical bulb must be specified separately from its form factor code, usually in millimeters, as must the lamp's voltage and wattage— hence, T3 120 V 150 W 118 mm means a double-ended tube-shaped bulb with a diameter of 9.5 mm (3 ⁄ 8 in) that operates at 120 V and is ...

6. Infrared heater - Wikipedia

   en.wikipedia.org/wiki/Infrared_heater

   There may be a wire guard over the front of the shroud, to prevent touching the hot surface of the bulb. Ordinary household white incandescent bulbs can also be used as heat lamps , but red and blue bulbs are sold for use in brood lamps and reptile lamps. 250 watt heat lamps are commonly packaged in the "R40" (5" reflector lamp) form factor ...

7. R40 - Wikipedia

   en.wikipedia.org/wiki/R40

   R40 (New York City Subway car) Chloromethane, a refrigerant; R40: Limited evidence of a carcinogenic effect, a risk phrase; R40 Live Tour, a 2015 tour by Canadian rock band Rush; R40 series of preferred numbers; Renault R40, a French tank; Rover 75, an executive car; Samsung Sens R40, a laptop; Toyota TownAce (R40), a Japanese van