How long does it take to heat up and generate heat? Looking to put on motion light for an open dog kennel.

It heats up right away. But we use it in our garage where we have a dog house for her. I don't know how well it would work in an open space.

What is the frequency emitted? Is this actual infrared or just red glass?

I didn’t see a uv frequency chart for this bulb, but you may be able to compare it to another light with the same lens color. I would imagine it’s somewhere between 625 and 675. I hope that helps.

I don’t believe so. It has no labeling on the box or bulb. I would think not

Are these dimmable if I add a dimmer switch to my dome fixture?

I do not know since the place where they are in use does not have a dimmer switch. I can not find any place where it's stated that they are dimmable.

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KOR 250 Watt R40 Clear Heat Lamp Light Bulb, Incandescent Reflector, Head Lamp, Heat Flood Lamp Light Bulb, E26 Standard Medium Screw Base, 120V, 2,000 Hour Rated, 2 Pack

Product ID: 207446011

Details

Brand
KOR
Bulb Shape Size
R40
Light Type
Incandescent
Special Feature
Long Lasting
Wattage
250 watts

⏳2,000 hours long-lasting warmth

⚡Instant heat activation

🔥250W powerful heat output

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€ 63.77

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Description

🔥 Stay warm, stay winning — heat that works as hard as you do!

HEAT ON DEMAND - Flip the switch and feel the fast-acting infrared warmth that mimics natural sunlight instantly.
PET PERFECT HEAT - Designed to keep chicks, reptiles, and furry friends cozy through cold spells with soothing infrared light.
DOUBLE THE COZY POWER - Pack of 2 bulbs to keep your space and pets perfectly warm—no more chilly moments.
ENDURANCE THAT IMPRESSES - Rated for 2,000 hours, these bulbs deliver reliable heat without constant replacements.
VERSATILE WARMTH SOLUTIONS - Ideal for everything from food warmers to spa heat therapy and animal care—your all-in-one heat source.

The KOR 250R40/1 is a 250-Watt incandescent heat flood lamp with a clear R40 reflector and standard E26 base, delivering fast, reliable infrared warmth. Rated for 2,000 hours of use at 120V, this pack of two bulbs is perfect for animal care, food warming, and personal comfort, combining durability with versatile heating power.

Specifications

ASIN	B088ZMGRTV
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Long Lasting
Best Sellers Rank	#14,427 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #138 in Incandescent Bulbs
Brand Name	KOR
Bulb Base	E26
Bulb Shape Size	R40
Color	Clear
Color Rendering Index	80
Connectivity Technology	Infrared
Control Method	App
Controller Type	Push Button
Customer Reviews	4.5 4.5 out of 5 stars (3,138)
Incandescent Equivalent Wattage	250 Watts
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	5"W x 6.5"H
Item Weight	11.36 ounces
Light Color	clear
Light Source Operating Life	6000 Hours
Light Source Type	Incandescent
Light Source Wattage	250 Watts
Light Type	Incandescent
Manufacturer	KOR
Manufacturer Part Number	K22546
Material Type	copper
Model Number	K22546
Number of Items	2
Package Quantity	1
Power Consumption	250 Watts
Power Source	Corded Electric
Shape	Reflector(R)
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Lamp
Style Name	Pack of 2-CLEAR-Heat Lamps
Theme	Animal Care, Home Heating
UPC	817300022546
Unit Count	2.0 Count
Voltage	120 Volts
Wattage	250 watts
White Brightness	100 Lumens

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