Free shipping
Low Price
View Cart

    Dimplex RB400 Opti-myst Replacement Bulbs - 4 Pack

    List Price: $69.99
    Sale Price: $56.95
    You Save: $13.04 (19%)
    In Stock.
    *Ships same business day.

    • Pack of 4
    • Works with Opti-myst model numbers DFI400LH, DFI400RH, and DFI600LH
    • Yellow bulbs give off the effect of real firelight
    • Model # RB400
    See complete product details >>
    Product Details
    Manufacturer: Dimplex
    Part Number: RB400
    eFireplaceStore Item Number: DPX-RB400


    • Pack of 4
    • Works with Opti-myst model numbers DFI400LH, DFI400RH, and DFI600LH
    • Yellow bulbs give off the effect of real firelight
    • Model # RB400
    Maintain the authentic look of firelight you love with the Dimplex RB400 Replacement Bulbs for Opti-Myst Cassette four pack. These yellow bulbs work with several models including the DFI400LH, DFI400RH, and DFI600LH. Opti-Myst owners should replace blown bulbs immediately to prevent potential damage to their unit. Not replacing bulbs can prevent water from evaporating as designed and may cause pooling that will drip into the lamp-holder. You may also try replacing blown bulbs with working bulbs from the unit to ensure that the lamp-holder assembly is working correctly. It would also be a good idea to keep spares on hand to guarantee uninterrupted use of your Opti-Myst firebox.
    Customer Questions & Answers
    5 Questions & 5 Answers
    from Missouri asked:
    October 19, 2021
    Are these halogen or LED?  If they are halogen, can they be obtained in LED?
    1 Answer
    These are halogen bulbs, and unfortunately, we do not carry them in LED. 
    Submitted by: Brennan W. on October 20, 2021

    Becky V
    from Bend, OR asked:
    July 5, 2021
    I have a Dimplex fireplace in my RV.  Model DF2600L.  Will these bulbs work for that?
    1 Answer
    Unfortunately, no.  These bulbs are specific to the Opti-Myst model.  Please reference your owners manual for your appliance's specific replacement bulb type.
    Submitted by: Aaron D. on July 6, 2021

    Dr Tornatore
    January 15, 2021
    Are the bulbs yellow? The picture shows two different colors
    1 Answer
    These bulbs are yellow.
    Submitted by: Aaron D. on January 15, 2021

    from kansasville, wi asked:
    November 27, 2017
    Are they xenon
    1 Answer
    These are listed as being halogen bulbs.
    Submitted by: Kelsey C. on November 28, 2017

    from USA asked:
    November 19, 2016
    What is the expected bulb life is of these?
    1 Answer
    These bulbs will generally last 2,000 hours, with a couple hundred hours of tolerance +/-. It is important to prevent oil contamination when installing them, meaning gloves should be worn when connecting to the socket base in the appliance and any contact with dirty surfaces should be avoided.
    Submitted by: eFireplaceStore on November 21, 2016

    Customer Reviews

    Find the Right Gas Logs
    For Your Fireplace

    Gas Log Calculator Gas Log Calculator
    Back to Top
    Sign-up for our Email!
    Enter your email for new arrivals and special offers.