the output voltage is ac or dc?

It is a AC 16V30VA Transformer for Dooebell or thermostats

Does this doorbell transformer apply to nest hello wifi doorbell?

A doorbell with a working voltage of 16V can be used,such asRing Video Doorbell，Ring Doorbell Pro，Zmodo Smart Greet Wi-Fi Video Doorbell，Ezviz Doorbell，Eufy 2K wifi wifeless doorbell,Netatmo video doorbell,night owl doorbell,skybell slim line doorbell camera,yiroka doorbell camera,Maximus kuna doorbell camera,Arlo Doorbell and etc.

What is the operating temperature of this 16v ac transformer? need to install in attic with 130+ degrees f.

Well it depends on what you are hooking the transformer up to, as far as the atmosphere air temperature that high should not be a problem, but, if you are going to use it to install a vent fan the temperature won't be that high it will be a lot less, just make sure the device will operate with this transformer.

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Doorbell Transformer 16V 30VA AC Power Supply Thermostat Power Adapter Hardwired Door Chime Transformer

Product ID: 635658655

Details

Brand
GIVEUBED
Current rating
30 Amps
Mounting type
Wall Mount
Power source
AC
Product dimensions
28D x 48W x

⚡16V AC output for stable power

🔌30VA capacity powers multiple devices

🛠️Easy wall-mount installation

307.43 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

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Description

⚡ Power your smart lifestyle with confidence and ease!

MULTI DEVICE READY - 30VA capacity supports multiple thermostats and doorbells simultaneously—no more underpowered setups.
PLUG PLAY SIMPLICITY - Effortless installation with screws or clips—upgrade your system in minutes without hassle.
CUSTOMER FIRST GUARANTEE - Backed by responsive support and hassle-free refunds or exchanges if expectations aren’t met.
POWER UP YOUR SMART HOME - Reliable 16V AC output ensures your Ring, Nest, Ecobee, or Sensi devices never miss a beat.
BUILT TO LAST CERTIFIED SAFE - ETL and UL certified for peace of mind in residential, commercial, or industrial use.

The GIVEUBED 16V 30VA Doorbell Transformer delivers consistent 16V AC power with a robust 30VA capacity, compatible with most smart thermostats and doorbells including Ring, Nest, Ecobee, and Sensi. Designed for easy wall-mount installation, it meets ETL and UL safety standards, making it ideal for residential, commercial, and industrial applications. With a strong 4.5-star rating and dedicated customer support, it’s the reliable upgrade your smart home deserves.

Specifications

ASIN	B09PYR1Y7J
Best Sellers Rank	#230,215 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in Door Bell Transformers
Brand Name	GIVEUBED
Current Rating	30 Amps
Customer Reviews	4.5 4.5 out of 5 stars (770)
Item Dimensions D x W x H	28D x 48W x 66H millimeters
Manufacturer	YU ER
Maximum Frequency	60 Hz
Minimum Frequency	60 Hz
Model	16V30VA
Mounting Type	Wall Mount
Number of Items	1
Number of Packs	1
Part Number	16V30VA
Power Source	AC
Specification Met	ETL, UL
Unit Count	1 Count

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307.43 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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