Our rechargeable bulbs work in compatible household lamps and charge a battery inside each bulb while the power is on. A charged bulb also provides backup light, including portable light with its supplied hook cap. The battery mode is dimmer than normal operation and lasts for a limited time.
Before choosing a pack, compare light color, battery output and lamp compatibility. Our Classic range offers 3000K warm white and 6000K daylight. This guide includes detailed output and runtime figures for the six- and ten-pack models; check the twenty-pack’s specifications separately. Keep the instructions supplied with your bulbs for installation, charging and operation.
One bulb, two different lighting jobs
A bulb running from household AC power has a steady electricity supply. In battery mode it has only its stored charge, so brighter settings use that charge sooner. Compare output and runtime at the same setting when deciding whether the light will suit a task.
Our Classic warm-white six-pack and both ten-pack options produce 800 lumens on AC power. That figure describes their normal use in a lamp. During an outage, the available light is lower; the battery figures below show how much lower at each setting.
Lumens describe light output. Watts describe electrical power consumption. Color temperature, measured in kelvins, describes the appearance of the light. These three numbers answer different questions, so none can stand in for the others. A cooler-looking bulb is not automatically brighter, and a lower-wattage bulb is not automatically the best match for a particular fixture.
| Figure | What it helps you compare | What it does not establish |
|---|---|---|
| Lumens | Light output in the stated mode | Battery runtime or fixture compatibility |
| Watts | Electrical power consumption | How warm or cool the light looks |
| Kelvins | The color appearance of white light | Brightness or battery capacity |
| Milliamp-hours | Battery capacity as specified | A universal runtime for every setting |
For a broader explanation of brightness, the US Department of Energy’s guide to lumens and lighting labels explains why comparing light output is more useful than choosing a bulb from wattage alone. Apply the same care to rechargeable bulbs by checking which operating mode a number describes.
How long does each setting last?
The warm-white six- and ten-packs have estimated battery outputs of 420 lumens for 2 to 3 hours at high, 190 lumens for 3 to 4 hours at medium, and 80 lumens for 4 to 6 hours at low. The daylight ten-pack has outputs of 450, 220 and 110 lumens respectively, with the same estimated runtime ranges. These figures assume a fully charged battery.
For example, the warm-white high setting gives more than five times the light output of low, but has a shorter runtime. Use high when you need more nearby light for a task, or low when a dimmer light is enough. Starting charge, battery condition and use affect the result. Detailed runtime figures for our twenty-packs are not provided here; check their model information separately.
3000K or 6000K: choose the room’s light color
Warm white at 3000K has a softer, golden appearance. It is a natural place to start for a bedside lamp, a reading corner or a living-room table lamp when you like a warmer evening atmosphere. Daylight at 6000K looks cooler and whiter. You may prefer it in a work corner or a space where the existing lighting already has a cool tone.
Your shade and room finishes also affect the result. A warm fabric shade changes the light that reaches the room, while an exposed bulb can feel harsher to look at, even at the same output. Think about the lamp as a whole when deciding which color you prefer.
Look at the lights you will use together. Two lamps on opposite sides of a sofa will look more consistent if their color temperatures match. If you prefer a warm table lamp beside cooler ceiling lighting, compare them while both are on so you can judge the combination from your usual seat.
Product photographs can show the shape, included pieces and intended uses. They cannot reproduce an exact light color on every screen. Phone display settings, room lighting and image exposure change what you see. Use the kelvin value as the specification and treat room photographs as visual context.
Check the whole fixture, not just the socket
Our Classic bulbs have E26/E27 screw bases and require 120V input. Check the lamp’s label for its electrical requirements before fitting one. If the lamp or its wiring is damaged, have that problem addressed first.
Next, check physical clearance. The Classic bulbs are approximately 2.28 inches across and 4.72 inches tall. Measure the space around the bulb and the opening you will need to pass it through. A wide shade does not help if the opening beneath it is too narrow. A shade support or enclosed cover can also reduce the available space, so check your own lamp rather than relying on its general shape.
Then look at the controls. A wall dimmer, three-way socket, electronic switch or fixture with several bulbs can behave differently from a simple lamp. A rechargeable bulb’s battery brightness settings do not automatically make it compatible with a household wall dimmer. Read the bulb and fixture instructions together.
Confirm the socket, voltage, physical clearance, fixture type and controls. If any of those details remain uncertain, ask the seller through the product’s purchase page before you order. Do not modify the bulb or fixture to make it fit.
Enclosure and moisture ratings also matter. A product shown in a camping or outdoor scene is not, by that image alone, rated for rain or a wet fixture. Use only the locations allowed by the instructions. For portable use, choose a dry, secure place and keep the bulb and its electrical contacts away from water.
Always turn off power before changing a bulb and allow a hot bulb to cool. Do not touch a bulb’s metal base while it is connected to mains power. The supplied hook is the appropriate portable control to learn; improvised tests involving water, wiring or household objects are unnecessary.
Allow enough time for charging
Choose a suitable lamp that receives power regularly. A lamp used through the evening offers more charging time than one switched on for a few minutes in a hallway. Consider how you actually use the lamp as well as where you would like backup light.
Our Classic six- and ten-pack bulbs need about 7 to 8 hours on household power for a full charge. Allow that first charge, then follow the product’s directions for regular use and storage. A quick test straight out of the box will not tell you how long a fully charged bulb can run.
Remember that an open wall switch cuts the power needed for charging. The bulb cannot replenish its battery simply because it is screwed into a lamp. This makes the choice of lamp important: put regularly used bulbs into compatible places where they will actually receive power for the required time.
Try the controls before an outage
Read the instructions while the room is well lit. Identify the hook-cap switch, learn the available settings, and carry out the recommended test for your model. Test the actual lamp or portable setup you plan to use. Backup behavior can depend on the fixture and circuit, so another person’s experience in a different lamp may not settle the question for yours.
Keep the instructions somewhere you can find them, and show other household members where the hook caps are stored. Let anyone who expects to use the portable light try the switch in advance. Small controls are easier to learn while the room is well lit.
For spare bulbs, follow the storage and recharging guidance supplied by the manufacturer. Do not assume that a bulb stored for an extended period will retain a full charge. A periodic check should confirm both that the light works and that its intended charging routine is being followed.
Keep warm-white and daylight spares in their labeled packaging so you can identify them without guessing from the unlit diffuser. Store each hook cap with the appropriate bulb or in one clearly identified place. When a bulb moves from storage into service, check the instructions again, allow the required charge and repeat the setup test in its new location.
Which pack size do you need?
Count the lamps you want to equip and group them by light color. Our warm-white range has six-, ten- and twenty-packs; daylight has ten- and twenty-packs. If you want both colors, count them separately before comparing quantities. Write each lamp on a separate line before adding the totals. Beside it, mark the chosen color and whether compatibility has been checked. Keep unresolved lamps outside the order total until you have an answer.
Suppose you want warm-white bulbs for two bedside lamps, two living-room lamps and a reading lamp. That is five bulbs, so a six-pack would leave one spare. A ten-pack would leave five. Either could suit you, but the larger pack means storing and maintaining more unused bulbs. This is a counting example, not a compatibility recommendation for those fixtures.
Do not count every socket in the house as a suitable location. Some may be enclosed, controlled by incompatible dimmers or part of a setup that needs further checking. A smaller group of verified locations is a better first step than fitting an entire pack and discovering that several fixtures behave differently.
| Pack size | Available light colors | Questions to settle before ordering |
|---|---|---|
| 6 bulbs | 3000K warm white | How many lamps will you equip now, and how many bulbs will remain? |
| 10 bulbs | 3000K warm white or 6000K daylight | Do the rooms you have counted need the same light color? |
| 20 bulbs | 3000K warm white or 6000K daylight | Have you checked the fixtures and the model’s charging and runtime details? |
To compare cost per bulb, divide the pack price by its bulb count. Count the bulbs you can install in compatible lamps now and how many would remain in storage. Compare charging and runtime specifications separately from pack quantity. Prices shown here reflect our latest check; confirm the current offer before ordering.
Give portable light a secure place
The supplied hook cap holds a charged bulb and provides its portable switch. You can move the light without carrying the whole lamp. Decide where you will hang it before an outage, with the switch in reach and the hook securely supported.
Keep the light away from water, unstable surfaces and places where it could be knocked down. Avoid hanging it where it can swing into people or equipment. Check the area beneath the hook, leave access to the switch and use the bulb only in the environments permitted by its instructions.
A portable light may help you find familiar objects or continue a quiet activity. It should sit alongside the rest of your household preparation. Keep an independent flashlight available. Rechargeable household bulbs are not a replacement for required exit lighting, professionally designed emergency systems or other safety equipment.
If you take a bulb on a trip, charge it beforehand and bring the hook cap and instructions. Check how you will recharge it at your destination: access to a suitable powered fixture matters just as it does at home. Use the bulb only in the conditions permitted for the model.
Make a room-by-room list
A short note for each lamp helps when several people are choosing bulbs or when you plan to order more later. Record the room, socket, available clearance, type of switch and the color of nearby lights. Add any unanswered compatibility question beside the lamp it concerns, rather than trying to remember it at checkout.
In a living room, look at the light from your usual seat. A bulb that is hidden by a shade when you stand may be directly visible when you sit on a low sofa. The shade and lamp position affect comfort as well as the color you choose. For reading, check where the light falls on the page.
At a desk, place the lamp where your hand or monitor will not block the area you need to see. Look for distracting reflections on the screen. Choosing a cooler bulb changes the appearance of the light, but it does not solve an awkward lamp position or replace the need for enough output at the work surface.
For a bedside lamp, consider how easily you can reach the normal switch and where a portable hook light could sit securely. Keep the accessory somewhere accessible without moving furniture. In a shared room, discuss where it will be stored so that anyone who uses the lamp knows where to find it.
Before and after delivery
Before paying, compare the chosen pack’s name, color and quantity with your list. Check the current price, delivery estimate and seller terms on the purchase page. If you need an answer about a dimmer or unusual fixture, resolve it before ordering rather than assuming a similar-looking bulb has the same compatibility.
When the pack arrives, count the bulbs and hook caps and check the color marked on the packaging. Keep that packaging while you inspect the items. Look for visible damage before installing a bulb; if anything is damaged or incorrect, use the help options attached to your order.
Try the first bulb in one checked fixture, following its instructions, before opening every lamp in the house. This gives you a chance to see the chosen color through your own shade and learn the controls. If you move that bulb to another kind of fixture later, check that fixture too.
For tracking, return eligibility or seller help, sign in to the account where you placed the order. Your order page holds those options; this website does not hold your order history. Keeping the pack information with your purchase record makes it easier to identify the model if you need help later.
A few common questions
Can I use these instead of an ordinary bulb every day?
That is the everyday role of the Classic rechargeable bulbs, when the fixture is compatible. Normal use also provides the power needed for charging. Check the lamp and product instructions, and remember that the battery mode has different output and duration.
Does a twenty-pack have the same runtime as a ten-pack?
Do not assume so. Our twenty-pack pages do not include the detailed runtime figures shown for the six- and ten-packs. Check the twenty-pack’s model information before buying if a particular brightness or runtime matters to you.
Should I buy warm white for every room?
Only if that is the appearance you want. Warm white and daylight offer different visual tones. You can use one consistently or choose different tones for different spaces. Matching lamps that are used together is often a helpful starting point.
What if I am unsure about my fixture?
Check its label and instructions, then use the seller’s product-question tools for the exact bulb. If the wiring or fixture condition is uncertain, have it checked before use. A rechargeable bulb adds a battery; it does not remove the need for a suitable electrical fixture.