Pentair 618040 GloBrite to MicroBrite Niche Adapter — Pool & Spa LED Light Retrofit, Genuine OEM
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The Pentair 618040 Niche Adapter is the genuine OEM accessory that lets a Pentair MicroBrite® LED light install into an existing Pentair GloBrite® niche. If a GloBrite light has failed and you want to move up to the newer MicroBrite platform, this adapter saves you from tearing out and replacing the niche — a far smaller job at a fraction of the cost.
Key Features
- Genuine Pentair OEM adapter: Correct fit between the MicroBrite fixture and the GloBrite niche opening.
- Avoids niche replacement: Upgrade the light without breaking out concrete or re-plumbing the conduit.
- Compact 3.5" design: Fits narrow walls, steps, and tight spaces where the original niche sits.
- ColorVision bubbler compatible: Also used in select Pentair ColorVision bubbler applications.
- Straightforward retrofit: A simple, low-labor path from GloBrite to MicroBrite lighting.
- Lightweight: Just 0.1 lb — ships fast and inexpensively.
Specifications
- Part Number: 618040
- Type: Pool/spa light niche adapter
- Application: GloBrite-to-MicroBrite conversion
- Compatible Light: Pentair MicroBrite LED
- Compatible Niche: Existing Pentair GloBrite niche
- Also Fits: Select Pentair ColorVision bubbler applications
- Length: Approx. 3.5"
- Weight: 0.1 lb
- UPC: 788379888190
- Brand: Pentair — genuine OEM
What's Included / Not Included
- Included: Niche adapter only
- Not included: MicroBrite LED light, transformer, junction box, or other electrical components
Frequently Asked Questions
What does the Pentair 618040 adapter actually do?
It allows a Pentair MicroBrite LED light to be mounted into an existing Pentair GloBrite niche. Instead of replacing the niche when you upgrade lights, you fit this adapter into the niche you already have.
Does it include the MicroBrite light?
No — the adapter only. You'll need the MicroBrite light separately. We carry the MicroBrite range including part 618031, along with Color Sync controllers 620424, 620429, and 620430.
Can I use this to replace a failed GloBrite light with a MicroBrite?
Yes — that's the most common use. When the existing niche and installation conditions are compatible, this adapter is what makes the swap possible without a niche replacement.
Does it work with ColorVision bubblers?
It's commonly used in select Pentair ColorVision bubbler applications. Confirm your exact bubbler setup before ordering, since configurations vary.
What's the difference between this and the 620040 niche?
They solve opposite problems. The 618040 adapter fits a MicroBrite light into a niche you already have. The 620040 is a complete GloBrite gunite niche for new construction or full niche replacement.
Do I need a professional to install it?
Yes — pool and spa lighting should be installed by a qualified professional in accordance with Pentair's instructions and local electrical code. Before ordering, confirm your existing light model, niche type, voltage, transformer, cord length, and conduit condition.