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Imtra Corona G4 Back Pin 21 SMD LED | 12 volt LED Replacement Bulbs
ILBPG4-21 Corona LED Replacement Bulb

Imtra Corona G4 Back Pin 21 SMD LED | 12 volt LED Replacement Bulbs

Was: $15.95
SailorSams Price: $13.95
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This is our brightest round LED replacement bulb for large spots and fixtures (e.g. dome lights).  Proprietary PWM Constant-current drive and 21 x high output, thermally-efficient SMD LEDs combine to give optimal performance in a G4 form factor.

Cool white color typically used for exterior applications or work areas that demand crisp white illumination. For a warmer color bulb, please see our Corona Warm White LED Bulb.  Input voltage must be DC (direct current) from a battery source, LED converter, or DC power supply. Not compatible with low voltage AC transformers (i.e. low voltage AC).

Note:  Check alignment of existing socket pin holes in your fixture.  If not horizontal, a realignment of socket may be necessary.

Replaces old item numbers ILBPG4-15C-B and ILBPG4-15W-B.

This item is sold in bulk packaging.


12-24 volt dc (10v-30v)


Warm White or Cool White LED Bulb Colors Available

Additional Information:

  • 21 x High Output SMD LEDs
  • Large diameter board for bigger fixture designs
  • Constant-current drive topology
  • Over-voltage protection
  • No radiated heat
  • Thermally efficient design
  • Also compatible with 12VAC (supplied from transformers)
  • Transient voltage suppression (to 60V)

Product Details:

  • Housing Finish/Material: Anodized Aluminum
  • Certifications & Compliance: CE, ROHS
  • Output Color: Cool White
  • Lifetime Hours: 30,000 hrs
  • Halogen Equivalency: 20W
  • Input Voltage: 10-30VDC (&12VAC)
  • Dimensions: 1.37" (34.8mm) dia x 0.35" (8.9mm) thick, pin length: 0.66" (16.8mm)
  • Bulb Socket Type: G4/GU4
  • Warranty: 2 Years
  • Power Consumption: 2.7W (250mA/12V, 125mA/24V)
  • Lens Material: UV stabilized polycarbonate
  • Beam Angle: 120°
  • Luminous Flux: 290 lms
  • Efficiency: 105%
  • Driver: Integrated Constant-Current
  • Electrical Protections: Thermal, reverse polarity, transient suppression (up to 60V)
  • Correlated Color Temperature (CCT): 5800-6800K
  • Color Rendering Index (CRI): 81
  • Approximate Ship Weight (lbs): 1

Products on this page: ILBPG4-21W-B, ILBPG4-21C-B

Distributor information

This product ships from the following distributor: Imtra

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