Quick Answer: Match the light to your tub, not just the color count. For an Intex inflatable tub, the Intex PureSpa Multi-Colored LED Light (28503E) is the manufacturer’s own $29.99 accessory built for Intex’s cup-holder tray. For a Bestway/Coleman SaluSpa, the SaluSpa LED Waterfall Accessory pairs a color-changing light with a waterfall feature on the same magnetic mount. For any other tub, a submersible floating RGB light with a remote works universally — just confirm it’s rated for chemically treated, heated water, not just clean freshwater, since a generic “waterproof” rating and a chemical-safe one aren’t the same thing.

Every hot tub light listing leads with color count and remote range. Those matter less than one question nobody asks first: is this light actually built to sit in hot, chlorinated or brominated water for hours at a time, or is it a generic waterproof gadget that happens to float? This guide sorts picks by that distinction, then by which tub brand each one is designed to mount on.

This is the lighting-specific companion to our hot tub accessories guide, where lights get a single line in a broader comfort-extras list. Here’s the deeper look at why the seal matters more than the color palette.

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Hot tub lights by the numbers

Hot tub lights compared

LightBest forPowerColors / modesTypical price
Intex PureSpa LED Light (28503E)Intex inflatable tubs3 AAA batteries, 2-hr auto-off5 colors, 2 modes$29.99 (confirmed by Intex)
Bestway SaluSpa LED WaterfallSaluSpa/Coleman AirJet tubs3 AAA batteries, 2-hr auto-off7 colors, waterfall combo~$40–$45
Submersible floating RGB light + remoteAny tub, hard-shell or inflatableRechargeable/battery, remote16 RGB colors, multiple modes~$15–$30
Compact underwater color-changing lightBudget, small tubs or bathtubsBattery, button-cycledColor-changing, no remote~$12–$18
Adhesive LED light strip + RF remoteHard-shell spa cabinet/skirtingPlug-in or battery packMulti-color, RF remote~$25–$40

Prices checked July 2026; treat unconfirmed ranges as street-price estimates and verify the current price on the listing before buying, since seasonal bundles shift them.

1. Intex PureSpa Multi-Colored LED Light (28503E) — Best for Intex Tubs

Intex PureSpa Multi-Colored Battery Operated LED Light

  • Clips into Intex's cup-holder-and-tray accessory point, built specifically for PureSpa models.
  • Five colors (white, green, teal, blue, purple) with single-color or color-changing modes.
  • Runs on three AAA batteries with a 2-hour auto shut-off, 1.0W draw, per Intex's spec sheet.
  • $29.99 direct from Intex, confirmed on Intex's own product page.
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This is the manufacturer’s own answer for anyone running an Intex PureSpa model, and the fit shows: it clips into the same tray slot as Intex’s cup holder rather than needing its own mount. Owner feedback flags one wear point worth knowing before you buy — the rubber buttons can turn gummy after a season of heat and chemical exposure — but at under $30 direct from Intex, most owners treat it as a yearly-ish accessory rather than a lifetime purchase.

2. Bestway SaluSpa LED Waterfall Accessory — Best for SaluSpa/Coleman Tubs

SaluSpa Battery Powered LED Waterfall Accessory

  • Magnetic attachment built for Bestway AirJet and AirJet Plus SaluSpa models.
  • Seven color-changing LED modes combined with a small cascading waterfall feature.
  • Three AAA batteries with the same 2-hour auto shut-off as the Intex light.
  • IP66-rated, per its own listing — mounted above the waterline rather than fully submerged.
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Bestway bundled the light with a waterfall feature instead of selling a standalone accessory, and the magnetic mount means no clipping into a tray slot the way the Intex light does — it just attaches to the vinyl wall. It’s the natural pairing for any Coleman SaluSpa model, especially the multi-seat Hawaii or St. Moritz, where the extra ambiance and sound of moving water covers more of the tub than a single point-source light would.

3. Submersible Floating RGB Light with Remote — Best Universal Pick

Submersible Floating LED Spa Light, IP68, with RF Remote

  • Works loose-floating on the surface or anchored with suction cups to a wall or floor.
  • 16 RGB colors, multiple brightness levels and modes, controlled by an RF remote.
  • IP68-rated for full submersion — confirm the listing specifically calls out chemical or spa-water resistance, not just freshwater.
  • Not brand-locked, so it fits an Intex, SaluSpa, or hard-shell spa equally well.
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This is the pick when you don’t want to be locked into one manufacturer’s accessory ecosystem, or when you own a hard-shell spa that has no cup-holder tray or AirJet mount to clip onto in the first place. The trade-off for that flexibility is that “IP68” alone isn’t the guarantee it sounds like — read the listing for an explicit mention of hot tub, spa, or chemically treated water, since a light validated only in still freshwater can start failing faster once chlorine or bromine gets at its seals.

4. Compact Underwater Color-Changing Light — Best Budget

Compact Battery-Powered Underwater Color-Changing Light

  • Small, button-cycled unit with no remote — press to change color or mode.
  • Battery-powered and small enough to tuck near a corner jet or drain.
  • Cheapest option in this roundup, often sold as a single unit.
  • No brand-specific mount; rests or wedges in place rather than clipping or floating freely.
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Skip the remote and the waterfall feature, and what’s left is the cheapest way to add color to any tub. It won’t cover a large multi-seat spa the way a floating light does, but tucked near one corner it’s enough ambiance for a two-person soak, and there’s very little to fail since there’s no pairing, no magnet, and no tray clip to wear out.

5. Adhesive LED Light Strip with RF Remote — Best for Hard-Shell Spa Cabinets

Waterproof LED Light Strip with RF Remote, Spa Cabinet Mount

  • Adhesive or clip mount designed for a spa's exterior cabinet or skirting, not underwater use.
  • Multi-color strip controlled by an RF remote with longer range than a basic IR remote.
  • Plug-in or battery-pack powered, depending on the kit.
  • Adds ambient lighting around the tub itself rather than inside the water.
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Every other pick here goes in the water; this one goes around it. For a hard-shell spa with a wood or synthetic cabinet, a light strip run along the base or skirting lights the deck and steps without ever touching spa water or chemicals at all, which sidesteps the seal-durability question entirely. It’s a good complement to an in-water light rather than a replacement for one — use it for the walk-up, and a submersible or accessory light for the water itself.

IP68 doesn’t mean chemical-safe

Every light in this guide except the cabinet strip spends most of its life sitting in hot, chemically treated water, and that’s a harder environment than the standard waterproofing tests most shoppers assume cover it. A generic IP68 rating certifies survival in still, clean, room-temperature freshwater — not heat, and not chlorine or bromine, both of which are known to degrade the rubber gaskets that make an IP rating hold up over time. That’s exactly why Intex and Bestway build their own accessory lights specifically for their tubs rather than pointing owners at generic waterproof gadgets: the seals and materials are chosen for the environment they’ll actually sit in. If you go with a universal or third-party light instead, look for a listing that explicitly mentions pool, spa, or hot tub use rather than just a high IP number — that’s the difference between a light built for your water and one that was only ever tested in a bucket.

The bottom line

If you own an Intex tub, the Intex PureSpa LED Light (28503E) is the $29.99 manufacturer accessory built for it. If you own a Bestway/Coleman SaluSpa, the SaluSpa LED Waterfall Accessory is the matching pick with a bonus waterfall feature. For any other tub, or if you want remote control and more color range, a submersible floating RGB light rated specifically for spa or chemically treated water covers it — just don’t assume a high IP number alone means it’ll hold up to a season of hot, chlorinated soaks. Whichever you choose, pair it with a hot tub cover that fits well, since ambiance doesn’t do much for your running costs if the heat it’s lighting up is also leaking out.