Will this work on 220v?

No, it's rated for AC 120-130, so it would not do well being pluggein into a 220v socket.

How much energy do they leave plugged in all the time question

.54 watts. That's whats stamped on the back of the light.

Does it turn have motion activation?

Thank you for submitting your question, The light is designed to turn on automatically when the power is out, when leaving the switch located in the ON position. It also features a red LED charging indicator that illuminates when the light is receiving a charge. 1. Before using your light, charge for 12 hours (normal charging time). 2. To charge light, plug in to AC power. 3. Charge the light with the switch up (On) if you want the light to turn on when the power is out. 4. Charge the light with the switch down (Off) if you do not want to use this feature. 5. Charge the light with the switch center (Sensor) if you want the light to turn on when dark. 6. Light may be plugged into the outlet indefinitely without harm. For any further information please reach out to us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Energizer Consumer Services

Of what chemistry is the rechargeable battery and is the battery free from "memory effects"?

Thank you for submitting your question,kindly note that our NIMH battery is free from memory effects and the battery chemistry that powers every Energizer® alkaline battery is a precise combination of zinc, high-density manganese dioxide, and potassium hydroxide For any further information please reach out to us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Energizer Consumer Services

ASIN	B08WCHXYLP
Battery Cell Composition	Lithium
Battery Description	Lithium
Best Sellers Rank	#4,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #80 in Handheld Flashlights
Brand	Energizer
Brand Name	Energizer
Brightness	40 Lumen
Color	3-pack
Country of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (7,436)
Date First Available	February 10, 2021
Finish Type	Black
Global Trade Identification Number	00039800138682, 30039800138683
Included Components	Battery
Item Dimensions LxWxH	1.77 x 4.48 x 6.45 inches
Item Package Dimensions L x W x H	5.31 x 5.08 x 1.69 inches
Light Output Maximum	40 Lumens
Light Source Type	LED
Manufacturer	Energizer
Material	Plastic
Model Name	ENR ENRCCHFN23.1 NA COMP RECH WB 3PK
Model Year	2021
Mounting Type	Handheld
Number of Batteries	1 Lithium Ion batteries required. (included)
Number of Items	3
Package Weight	0.22 Kilograms
Part Number	E303215300
Power Source	Corded-Electric
Product Dimensions	1.77"D x 4.49"W x 6.46"H
Recommended Uses For Product	emergency situations, power outages, hurricane supplies
Size	3-pack
Special Feature	Rechargeable
Style	3-pack
Suggested Users	Unisex-Adult
UPC	039800138682
Voltage	3 Volts
Warranty Description	Not applicable.
Water Resistance Level	Not Water Resistant
White Brightness	40 Lumens

Energizer Auto-On LED Flashlights Rechargeable (3-Pack) for Home Power Failure, Plug in LED Flashlight for Power Outage, Night Light, Hurricane Preparedness

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常见问题