What country are these lamps made in?

If I recall, China. But it's been quite a while since I saw the box, so I will say that I believe that I am accurate to the best of my knowledge.

This is far infrared, what spectrum is it?

I believe that is a question for the manufacturer and or Amazon customer service. I don't recall that information on the box either? Google or Chrome Search App may have some data on your question if you ask and include the Wattage. I used these bulbs for the heat lamp in the chicken coop.

Are the lamps coated with silicone or something to prevent shattering?

no, the clear ones come in shatter shield. https://www.amazon.com/dp/B08WPGBTP1?ref=myi_title_dp it will be in stock 1-2 weeks.

Are these bulbs 6.5" long, or 9.1" long? The information in the listing shows contradictory data...

Just looking at my tape measure, and if I recall, the size of the bulb box and the bulb itself, 6.5 inches is the more accurate measurement. You can confirm that with Amazon Customer Service, as well.

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2 Red Heat Lamp

Product ID: 161450206

Details

Brand
BULBMASTER
Bulb Shape Size
R40
Light Type
Incandescent
Special Feature
Dimmable
Wattage
250 watts

⏳6000 hours long lifespan

🔥250W powerful heat output

🔴Infrared red heat technology

€ 69.76

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Description

🔥 Stay warm, stay ahead – heat that works as hard as you do!

MULTI USE HEAT SOLUTION - Perfect for pet brooders, sauna replacements, beauty salons, and food service.
POWERFUL 250 W HEAT OUTPUT - Delivers intense warmth for pets, bathrooms, and specialty uses.
DURABLE 6000 HOUR LIFESPAN - Long-lasting performance reduces frequent replacements and hassle.
INFRARED RED HEAT TECHNOLOGY - Efficient radiant heat ensures consistent, soothing warmth.
VERSATILE 2 PACK CONVENIENCE - Two bulbs with standard E26 base for easy, flexible installation.

The BULBMASTER 250 Watts R40 Red Heat Lamp Bulbs (2 Pack) feature powerful 250W infrared heat technology with a durable 6000-hour lifespan. Designed for versatile use in pet brooders, bathrooms, beauty salons, and food service, these bulbs fit standard E26 fixtures and provide consistent, efficient radiant warmth. Ideal for professionals seeking reliable, long-lasting heat solutions that blend functionality with convenience.

Specifications

ASIN	B07VWL8D33
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Dimmable
Best Sellers Rank	#18,588 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #205 in Incandescent Bulbs
Brand Name	BULBMASTER
Bulb Base	E26 Medium
Bulb Diameter	4.92 inches
Bulb Shape Size	R40
Color	White/Red
Color Rendering Index	80
Control Method	App
Controller Type	Push Button
Customer Reviews	4.5 4.5 out of 5 stars (2,752)
Incandescent Equivalent Wattage	250 watts
Included Components	non
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	1.03"W x 6.5"H
Item Type Name	Heat lamp
Light Color	Red
Light Source Operating Life	250 days
Light Source Type	Incandescent
Light Source Wattage	250 watts
Light Type	Incandescent
Manufacturer	BULBMASTER
Manufacturer Part Number	Heat Lamp
Manufacturer Warranty Description	30 days.
Material Type	Glass
Model Name	Heat Lamp
Model Number	Heat Lamp
Number of Items	1
Package Quantity	1
Power Consumption	250 watts
Power Source	Corded Electric
Shape	Reflector(R)
Specific Uses For Product	Heat Lamp
Style Name	250W/R40/RED/2PK
Theme	Heating
UPC	729798771502
Unit Count	1 Count
Voltage	120 volts
Wattage	250 watts

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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€ 69.76

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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