LED balloons use tiny lights powered by small batteries to create a glow effect. You’ll typically see two styles:

• Built-in LED latex balloons: A small LED and battery are sealed inside. You activate it (often by pulling a tab or flipping a switch), then inflate and tie as usual.
• Clear “BoBo” balloons with string lights: A transparent balloon is inflated first. A separate micro-light strand wraps around the outside and connects to a small battery pack or handle.

Both styles can be filled with helium for floating displays or air for arches, garlands, and centerpieces. Assembly can vary by set, so it’s helpful to review the instructions and what’s included on the product page.

There are two timelines to consider: how long they glow and how long they float.

• Glow time: Runtime depends on light mode, battery capacity, and temperature. Many light-up balloons are designed to illuminate through a typical evening event, but results can vary.
• Float time: Helium lift is influenced by balloon material (latex vs. clear bubble-style), inflation size, and conditions like heat, humidity, and altitude. Latex usually loses lift sooner than thicker, bubble-style balloons.

For the most accurate expectations, check the item description or packaging on Walmart.com. Inflating close to party time and keeping balloons indoors and out of direct sun can help maintain both glow and float.

Choose based on the look you want and the set you buy.

• Helium: Great for floating centerpieces and handheld displays. If your kit includes a battery pack, consider its weight—lighter light strands are easier to float.
• Air: Ideal for arches, garlands, balloon boxes, or wands. A hand pump or low-pressure electric inflator can help you fill steadily without stressing the material.
• Helpful tips: Turn on lights before sealing, size balloons according to the instructions, and secure knots or clips firmly. If displaying outdoors, tether balloons to prevent flyaways.

Product pages on Walmart.com outline recommended fill types and assembly steps for each set.

They’re commonly called “BoBo” balloons—clear, bubble-style balloons paired with tiny LED string lights.

• Look and size: The balloons are transparent and inflate to a smooth, round shape. Many sets inflate to around 20 inches, depending on the design.
• How they’re used: Inflate the balloon, then wrap or spiral micro-lights around it and attach the battery handle. They work well for bouquets, table decor, and photo backdrops.
• What’s included: Kits can vary—some include batteries, sticks, or handles, while others sell components separately. Check the item page for contents and assembly notes.

A few precautions can make light-up balloons more family-friendly.

• Supervise use: Balloons and small parts can be choking or tangling hazards. Avoid unsupervised play, especially with children under 3.
• Manage batteries: Keep button batteries and battery packs secure and out of reach. Dispose of spent batteries according to local guidance.
• Smart placement: Keep cords and lights away from faces and necks, and position balloons away from heat sources or open flames.
• Clean-up and storage: Collect and discard popped pieces promptly, and store unused balloons and light strands in a dry, inaccessible place.

Always follow the instructions provided on the product page and packaging for your specific set.