expired
4-Ct LHZHENG Rechargeable Emergency LED Light Bulbs w/ Built-In Battery Backup
$16
$31
48% off
Amazon
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AmazonDeal Details
LingHang WuLiu via Amazon has 4-Count LHZHENG 12W 60W Equivalent Rechargeable Emergency E26 Base LED Light Bulbs w/ 1500mAh Built-In Battery Backup & Adjustable Brightness on sale for $31.29 - $15.65 (50%) when you apply promo code GEWQ9AOR at checkout = $15.64. Shipping is free with Prime or on $35+ orders.
Thanks to Deal Hunter niki4h for sharing this deal.
Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Product Details:
Thanks to Deal Hunter niki4h for sharing this deal.
Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Product Details:
- Rechargeable emergency LED bulb with built-in battery automatically turns on during power outages when the switch is left on
- Provides up to 14+ hours of backup lighting on a full charge
- Fully recharges in 6–8 hours when connected to mains power
- Three adjustable brightness levels (100% / 50% / 10%) with estimated runtimes of 2–3 hours, 7–8 hours, or 14+ hours
- Brightness can be adjusted using the wall switch during outages or the button on the included hook
- Produces 800–850 lumens of 6000K daylight white light
- 12W LED output is equivalent to a 60W incandescent bulb while using up to 80% less energy
- Standard E26/E27 base installs like a regular light bulb
- Includes a holder hook for portable use during camping, storms, hurricanes, and other emergencies
- Lifetime warranty
Editor's Notes
Written by Nate650 | Staff- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Additional notes:
- Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
LingHang WuLiu via Amazon has 4-Count LHZHENG 12W 60W Equivalent Rechargeable Emergency E26 Base LED Light Bulbs w/ 1500mAh Built-In Battery Backup & Adjustable Brightness on sale for $31.29 - $15.65 (50%) when you apply promo code GEWQ9AOR at checkout = $15.64. Shipping is free with Prime or on $35+ orders.
Thanks to Deal Hunter niki4h for sharing this deal.
Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Product Details:
Thanks to Deal Hunter niki4h for sharing this deal.
Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Product Details:
- Rechargeable emergency LED bulb with built-in battery automatically turns on during power outages when the switch is left on
- Provides up to 14+ hours of backup lighting on a full charge
- Fully recharges in 6–8 hours when connected to mains power
- Three adjustable brightness levels (100% / 50% / 10%) with estimated runtimes of 2–3 hours, 7–8 hours, or 14+ hours
- Brightness can be adjusted using the wall switch during outages or the button on the included hook
- Produces 800–850 lumens of 6000K daylight white light
- 12W LED output is equivalent to a 60W incandescent bulb while using up to 80% less energy
- Standard E26/E27 base installs like a regular light bulb
- Includes a holder hook for portable use during camping, storms, hurricanes, and other emergencies
- Lifetime warranty
Editor's Notes
Written by Nate650 | Staff- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Additional notes:
- Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.
Community Voting
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Top Comments
Manually unscrewing the bulb is a worthless design.
Community Reviews
These rechargeable emergency LED bulbs are meant to provide backup light during outages, with adjustable brightness and a built in battery. The clever part is that they can switch into emergency mode when the wall switch stays on and power fails, though the trigger seems finicky and may depend on the wiring or other loads on the circuit. Runtime is also questioned, since the 1500mAh battery may not support the claimed hours at full brightness. The low price is attractive, but the setup quirks and battery limits matter.
Common Questions (4)
It can turn on automatically when the wall switch is left on and power is lost. It may not trigger if the circuit is opened the same way as switching the light off, and some setups require the bulb to sense a closed circuit or another load in parallel.
The included base is not required for normal use, and the product photos show multiple ways to use it. The bulb can still be used in a standard socket, but the separate dock/base is part of how some people test or recharge it.
It works best with simple loads, such as an incandescent lamp in parallel, and can detect a closed circuit when power is lost. It may not work reliably with LEDs, CFLs, USB chargers, laptop power supplies, or other switched-mode devices, and a power strip can accidentally trigger backup mode.
The claimed 2-3 hour runtime is hard to support from the listed battery and wattage. A 1500mAh, 3.7V battery is about 5.5Wh, so at a 12W draw it works out to roughly 0.46 hours in ideal conditions, and less in practice.
AI-generated summary based on comments from the community. Updated ago
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18 Comments
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Our community has rated this post as helpful. If you agree, why not thank
Our community has rated this post as helpful. If you agree, why not thank
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Manually unscrewing the bulb is a worthless design.
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(google lithium dendrites)
I assume this only works when there are other loads plugged in, so the bulb could detect an alternative conducting path when the switch is closed (ON) and the power is out. Those who complained about it not working have probably only tested it by pulling the plug, which is equivalent to opening the switch (OFF). The test rig should have another light bulb (or similar) wired in parallel. I might get a set of these just for funsies
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Battery is 1500mAh. That is 5.5Whr (1.5Ah x 3.7v). Bulb uses 12W. That means it can only run 0.46 hour (5.5Whr/12W) in ideal conditions. That means even less runtime if includes inefficiency in calculation.
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