We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Red round LED warning light with magnetic base, 4-1/4 inch diameter

Grote

Grote 77912 Warning Light LED Red Magnetic Round 4-1/4 Dia

SKU CH-2KNT-R79ES

Magnetic red LED warning beacon flashes 360 degrees for portable vehicle safety

  • Product colorRed
  • Flashing red LED beacon alerts traffic to hazards
  • Magnetic nylon base secures instantly to any steel surface
  • 360-degree portable series gives all-round visibility
  • 4 11/16 inch diameter fits standard mounting points
  • Grote 77912 built for RV and fleet use

Grote 77912 Red LED Warning Light

The Grote 77912 is a portable flashing beacon designed for vehicles that need temporary high-visibility signalling. Its magnetic base attaches to ferrous surfaces without tools, making it suited for roadside assistance, utility fleets or agricultural equipment. The red LED array produces a 360-degree flash pattern. The unit is supplied new and ready for immediate deployment.

Check power source and mounting surface

Verify that the intended vehicle provides a compatible DC supply for the light's wiring harness before ordering. Confirm the roof or panel where the beacon will sit is clean, flat and made of magnetic metal so the nylon-and-polycarbonate base holds securely at speed. The product is restricted from sale in certain states; ensure local regulations permit its use on public roads.

Magnetic base and polycarbonate lens

The magnetic mount lets operators place or remove the beacon in seconds, leaving no holes or brackets behind. A nylon base resists corrosion while the polycarbonate lens withstands impact and UV exposure during daily outdoor use. The round 4-1/4-inch diameter housing sheds water and debris. No permanent installation hardware is included or required.

How it compares

Measured against everything we stock in Diagnostic Tools & RV Electronics, at today’s prices. Recalculated every night.

Price $49.99
Pricier than about 78% of the 432 comparable items (median $18.99).

Specifications

Product
Brand nameGROTE
Product colorRed

Questions about this item

Does the Grote 77912 warning light come with a power cable or do I need to supply one?

The unit has a magnetic base and plugs into a standard 12 V accessory socket, so no extra wiring is required.

Which mounting style does the 77912 use — permanent bolt-on or magnetic?

It uses a magnetic mount with a nylon and polycarbonate base for quick, temporary placement on metal surfaces.

What does the 360-degree series rating mean for visibility on the road?

The amber LED beacon flashes in a full 360-degree pattern so it can be seen from every angle around the vehicle.

More in Diagnostic Tools & RV Electronics

Similar items