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Optima L-21 double G4 lamp holder, white plastic

Optima

Optima L-21 double lamp holder G4 GU4 GX4 GZ4

SKU CH-K644-ZX9E8

Holds two G4, GU4, GX4 or GZ4 bulbs up to 100 W each at 25 V

  • Holds two low-voltage bulbs in one fitting
  • Compatible with G4, GU4, GX4 and GZ4 bases
  • Each socket rated for up to 100 W at 25 V
  • Simple push-fit installation for MR11 and 2-pin G4 lamps

Optima L-21 double lamp holder for G4 bases

This Optima L-21 holder accepts bulbs with G4, GU4, GX4 and GZ4 bases such as MR11 and two-pin G4 types. It provides two sockets in a single unit for installations that need paired low-voltage lamps. Each socket is rated for a maximum of 100w at 25V.

Dual socket layout simplifies paired bulb wiring

The double design lets you connect two compatible bulbs from one mounting point, reducing the number of separate holders required. This arrangement suits fixtures built for twin MR11 or similar capsules. Buyers needing a single socket or a different base type should choose an alternative holder.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 90% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameOptima Lighting
Model nameNo

Questions about this item

Will the ceramic sockets or internal wiring need replacement after extended use?

The holder uses standard G4/GU4/GX4/GZ4 sockets rated for 100 W at 25 V each; only the bulbs themselves require periodic replacement.

What thermal or electrical limit is reached first when both sockets run at full load continuously?

Each socket is rated for a maximum of 100 W at 25 V, so the 100 W per socket limit governs sustained operation.

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