Answering your search: a head unit conversion kit helps convert a tub-to-shower or install headlamp ballast/tower components by providing the required fittings, diverters, risers, or adapters. This guide highlights five practical kits, explains who they’re best for, and compares key points to help you choose confidently. The top picks include tub-to-shower conversion kits for bathroom renovations and HID/ballast units for automotive lighting upgrades. Use these selections to plan a problem-free upgrade, whether you’re remodeling a rental, finishing a basement bathroom, or refreshing vehicle headlights.
Summary table of chosen products:
| Product | Best For | What To Know |
|---|---|---|
| GBBNE Convertor Shower Unit Spout-Type Add-On Tub Shower Conversion Kit (Polished Chrome) | Bathrooms without built-in shower | 70″ riser, 360° shower head, pull-up diverter |
| Pyhomestrim Clawfoot Tub Shower Kit | Clawfoot tubs, vintage style bathrooms | All-in-one faucet, shower rod, riser; sturdy 1″ rod |
| O-NEX Xenon D3S D3R HID Ballast (Factory OEM Direct Replacement) | Vehicle HID headlamps | Plug-and-play, compatibility with Dodge/chassis listed |
| GBBNE Convertor Shower Unit Spout-Type Add-On (Brushed Nickel) | Modern tub-to-shower upgrade | Same core features, finish option |
| HiSport Xenon HID Ballast Headlight Control Unit | Chrysler/HD headlight repair | 6-in-1 protection, OE-fitment |
GBBNE Convertor Shower Unit Spout-Type Add-On Tub Shower Conversion Kit Polished Chrome
The GBBNE polished chrome kit is designed for tubs lacking a built-in shower. It includes a tall wall-mounted riser and a 360° swivel head to optimize overhead spray. The kit uses SUS304 stainless steel and ABS parts for corrosion resistance and long-term reliability. The pull-up diverter simplifies switching between tub and shower flows, making it suitable for budget remodels or rentals seeking a modern upgrade. Best for homeowners upgrading standard bathtubs to include a shower feature without replacing the whole tub.
Best for: buyers upgrading a standard tub into a tub-to-shower configuration in a contemporary bathroom. Why selected: robust materials, adjustable showerhead, and a straightforward diverter system support an easy install and lasting performance. Caution: ensure your tub’s plumbing layout accommodates a 70-inch riser and wall-mount compatibility.
Pyhomestrim Clawfoot Tub Shower Kit
This all-in-one clawfoot tub shower kit targets vintage or traditional bathrooms by pairing a clawfoot faucet set with a rectangular shower rod, shower riser, and ceiling/wall supports. It strengthens the tub-to-shower conversion with a heavy-duty look and feel, including a 6-inch rainfall shower head. Best for: classic or period-style bathrooms that want a complete, integrated conversion from tub to shower without separate components. Why selected: higher outer-diameter rods and upgraded supports improve sturdiness for long-term use. Caution: heavy installation components may require additional mounting space and precise alignment.
O-NEX Xenon D3S D3R 35W HID Ballast
This ballast is a factory OEM direct replacement option for select Dodge Challenger/Charger models. It is designed as a plug-and-play module intended to replace a malfunctioning HID ballast. Best for: vehicle owners seeking a direct-compatible ballast to restore ballast function without complex coding. Why selected: easy installation and direct replacement compatibility with listed vehicles. Caution: verify part numbers and exact fitment for your model year before purchasing.
GBBNE Convertor Shower Unit Spout-Type Add-On Tub Shower Conversion Kit Matte Black
The matte black finish offers a subtle aesthetic variation of the tub-to-shower conversion kit. It shares the same multi-material construction and 1.8 GPM water flow as its chrome counterpart, with a pull-up diverter and a 70-inch riser. Best for: bathrooms aiming for a modern, matte black hardware theme. Why selected: identical performance with a different finish to fit different design schemes. Caution: match the finish to your existing fixtures to maintain a cohesive look.
GBBNE Convertor Shower Unit Spout-Type Add-On Tub Shower Conversion Kit Brushed Nickel
The brushed nickel variant maintains the same core design as the chrome model, providing flexible aesthetics for contemporary bathrooms. It preserves the 70-inch shower riser, 360° swivel head, and a smooth pull-up diverter for reliable tub-to-shower operation. Best for: households seeking a cohesive, brushed nickel fixture set. Why selected: offers design compatibility with nickel fixtures while retaining performance. Caution: ensure the finish complements your existing fixtures and décor.
HiSport 68170821AA Xenon HID Ballast Headlight Control Unit
This HID ballast and headlight control unit targets Chrysler 300 and similar models, offering plug-and-play replacement with built-in protection features. Best for: vehicle owners needing a direct-fit ballast replacement to restore stable HID operation. Why selected: 6-in-1 protection and OEM-fitment improve reliability. Caution: verify exact vehicle compatibility and bulb specifications before purchase.
Bog Deathgrip Ballhead Conversion Complete Kit
The Bog Deathgrip kit is a lightweight, full-featured ballhead conversion suitable for tripod setups. It emphasizes a full range of motion and included hardware for quick installation. Best for: outdoor photographers or videographers seeking a portable, easy-to-use ballhead upgrade. Why selected: reduces weight without sacrificing maneuverability. Caution: compatibility with existing tripod plates should be confirmed to avoid adapter issues.
HID Headlamp Xenon Ballast & Igniter & D1S Bulb Replacement
Replacement set for multiple vehicle models featuring a ballast, igniter, and D1S bulb. Best for: drivers needing a comprehensive HID refresh to restore bright, consistent headlamp output. Why selected: consolidates ballast and bulb replacements into one kit for compatible vehicles. Caution: verify compatibility with vehicle year, model, and bulb type to ensure proper fit.
Buying Guide
Key considerations for head unit conversion kits include fitment, finish, and installation effort. Start by confirming compatibility with your tub shape, faucet layout, or vehicle model. Consider material quality and corrosion resistance for bathroom use, particularly in chrome or brushed nickel finishes. For automotive kits, verify the exact part numbers, wiring harness compatibility, and whether the kit requires any coding or special tools. If you’re updating a clawfoot tub, check the weight capacity of the shower rod and riser. For HID components, ensure the ballast’s compatibility with your headlamps and bulb type. Finally, consider whether you prefer a complete all-in-one kit or modular components you’ll assemble separately.
Buying tips by scenario:
- Bathroom remodel without replacing the tub: choose a tub-to-shower conversion kit with a tall riser and a reliable diverter.
- Clawfoot tubs: pick a complete kit with sturdy rods and a heavy-duty showerhead to ensure durability.
- Automotive HID upgrades: select plug-and-play ballasts that clearly list compatible vehicle models and bulb types.
- Finish and styling: if your fixtures are nickel or brushed nickel, prefer a matching finish for a cohesive look.
Frequently Asked Questions
- What is a tub-to-shower conversion kit best for? It is best for transforming a bathtub into a functional shower area without a full remodel or tub replacement.
- Do these kits require professional installation? Some installations are straightforward, but complex setups (especially clawfoot or heavy fixtures) may benefit from professional help.
- Will a hydronic or HID ballast affect warranty? Check the manufacturer’s warranty guidelines and vehicle-specific recommendations before installation.
- Can I mix finishes like chrome and brushed nickel? It is generally better to keep a consistent finish for a cohesive design, unless you intentionally create a mixed-metal look.
- Are all ballasts plug-and-play? Not all are; verify plug-and-play compatibility with your specific vehicle model and electrical system.
- What is the importance of a diverter in a tub-to-shower kit? A diverter directs water flow between the tub faucet and the shower head, enabling smooth operation without leaks.