Hella Marine 1-1/2" Round LED Warning Light, Amber, 37 Patterns

The Hella Marine H22901001 is a compact LED warning light that punches well above its size. It's a 1-1/2 inch round unit with a clear lens over an amber LED, and it gives you 37 user-selectable flash patterns from one small housing. If you need to signal, warn, or mark a working boat without hanging a big light bar off the hardtop, this is the kind of light that does the job quietly.

Amber is the color you reach for when you want attention without alarm. It reads as caution, service, or work in progress, and it cuts through gray, overcast conditions on the water better than most people expect. The clear lens keeps the optic clean and lets the amber LED do the talking. When the light's off, it just looks like a small polished lens on the deck or console. When it's on, there's no missing it.

The 37 flash patterns are the real story here. You get steady burn, single and double flash, quad flash, rotating simulations, and a range of strobe timings. That flexibility matters because different jobs want different signatures. A slow single flash for a lit dayshape reads differently than a hard quad strobe for an active hazard. You cycle through the patterns right at the light by momentarily switching power, so you can dial in the one you want on the boat, in the conditions you're actually working in.

Power is where this light earns its keep on a mixed fleet. It runs on anything from 12 to 24 volts, so the same part number drops into a small center console or a larger 24-volt commercial hull without a second thought. LED draw is low, so you're not taxing the house bank if you leave it running through a long night watch. Wire it to a fused, switched circuit and you're set.

Mounting is bolt-on surface mount, and Hella designed it to sit concealed and low-profile. The included bezel finishes the edge cleanly against the deck, cabin top, or console face. A word from experience: give it a flat, solid surface. Curved surfaces and thin panels want a backing plate or a little shimming so the base seats evenly and the gasket compresses the way it should. Bed the base in a quality marine sealant before you snug the bolts down. That's the difference between a light that stays dry for years and one that weeps after a couple of seasons.

Placement is worth a minute of thought too. Concealed is great for a clean look, but tuck it too far behind a rub rail or coaming and you'll hide the signal from the angle that matters. Mount it where the pattern actually reaches the eyes you're trying to reach, whether that's another boat, a crew on deck, or traffic on a busy waterway.

This is Hella Marine build quality, which means it's made to live outside in salt and sun. Sealed LED optics, no bulb to burn out, and a housing that shrugs off spray. LEDs also start instantly and hold their output as the battery voltage sags, so the flash stays crisp whether you're on a full charge or deep into a long night. It's a good fit for patrol and service boats, commercial workboats, tenders, and any rig that needs a compact, serious warning signal without the weight and windage of a full bar. And because it draws so little, you can leave it wired to its own switch and forget it's even there until you need it.

One thing it isn't: a navigation light. Amber warning signals are for caution and work signaling, not for meeting your vessel's required nav-light setup. Keep your red, green, and white nav lights doing their job, and let this one handle the warning duty. Rig it right, mount it flat, seal it well, and it'll do exactly that for a long time.