CTSH LIGHT. is a brand of machined lighting created by a metal processing manufacturer in Mizunami City, Gifu Prefecture (Nippon Geonic Co., Ltd.). It is adopted by major home builders, as well as design firms, home builders, home builders, hotels, and restaurants nationwide.
What is CTSH LIGHT.?
Drawing on over 40 years of precision metal machining expertise, we primarily manufacture pendant lights and wall lights made from brass, iron, and stainless steel. The brand name "CTSH" stands for Circle, Triangle, Square, and Hexagon, using universal geometric shapes as the starting point for our designs.
| Operating Company | Nippon Geonic Co., Ltd. | Representative | Hide Nakajima | Location | 1143-88 Tsukiyoshi, Aise-cho, Mizunami City, Gifu Prefecture 509-6131 | Founded | 1980s (metal processing business) / 2020 (CTSH LIGHT. brand launch) | Manufacturing Method | Machining (a method of creating shapes by cutting away excess material from a solid block of metal) | Main Materials | Brass, iron, stainless steel, white porcelain, ceramic (artist collaboration series) | Business Hours | 8:30–17:30 (Closed: Saturdays, Sundays, and holidays) |
|---|
Wholesale Customers
We offer wholesale to the following businesses. We support orders from a single item, direct shipping to the client, and split deliveries for multiple projects.
Design Firms & Architects
Select lighting during the design phase of homes, stores, and hotels. We provide PDF approval drawings and specifications. You can also use them for proposals to clients.
Home Builders & Contractors
Adopted as standard or optional specifications for custom-built homes. We support bulk orders for multiple buildings and direct shipping to clients.
Interior Coordinators
For coordination proposals requested by clients. We support sample loans and provide approval drawings.
Hotels & Lodging Facilities
We support lighting selection tailored to your brand for guest rooms, lobbies, restaurants, and more. We can handle bulk orders of the same specifications for multiple guest rooms.
Cafes, Restaurants, & Hair Salons
For creating the atmosphere of your store. The patina of brass deepens with the history of your store, becoming part of the brand.
Interior Shops & Lighting Wholesalers
We support purchasing and wholesale for businesses considering sales in physical stores and e-commerce. We accept inquiries about ongoing business.
Adoption Scenarios
In any space, the serene light emitted by machined metal sets the scene.
New Construction & Custom-Built Homes
For all spaces in a home, including the dining room, living room, entrance, toilet, and stairs. You can also use them as a proposal tool for clients.
Apartments & Remodeling
Simply replacing existing lighting completely refreshes the impression of the space. We have many no-installation models compatible with ceiling hook mounts.
Traditional Japanese Houses & Renovations
The texture of brass and iron pairs perfectly with reclaimed wood, earthen walls, and beams. The patina that deepens over time harmonizes with the history of the space.
Hotels & Lodging Facilities
For guest rooms, lounges, restaurants, and more. We support bulk orders of the same specifications for multiple guest rooms and direct shipping to clients.
Cafes & Restaurants
The patina of brass tells the story of your store. Using Edison bulbs creates an even more retro atmosphere.
Offices & Stores
Add warmth to office spaces that can tend to feel inorganic. Use them as accents in conference rooms, reception areas, and at counters.
Corporate Ordering Process
For your first transaction, please contact us via the inquiry form first.
Inquiry
Please contact us via the inquiry form with the product name, quantity, delivery date, and shipping address.
Quote
We will reply with a quote within 1–2 business days.
Order
After confirming the details, please place your order via a purchase order or the website.
Production & Shipping
Ships within 10–14 business days. We will issue a bill and invoice.
| Payment Method | Bank transfer (bill payment) ※For the first time only, shipping after payment confirmation ※From the second time onward, end-of-month closing with payment at the end of the following month |
|---|---|
| Bill & Invoice | Available. Registered as a qualified invoice issuer |
| Delivery Time | Usually 10–14 business days. +7–10 business days for custom cord lengths |
| Minimum Order Quantity | Orders from a single item are accepted |
| Client-Supplied & Direct Shipping | Direct shipping to the client's name and address is available. Delivery slip name changes are accepted |
| Split Delivery for Multiple Projects | Supports delivery separated by project (shipping fees are separate) |
About Approval Drawings & Specifications
Please contact us if you need approval drawings (PDF) for any product. Use them for building applications, internal approvals, and proposals to clients.
Approval Drawing PDF
Lists external dimensions and installation dimensions. Can be used for building applications and internal approvals.
Specifications & Spec Sheet
Detailed specifications including materials, socket type, weight, indoor/outdoor classification, dimming compatibility, etc.
Approval Drawings for Products Not Listed
For products not listed on the product page, please request them via the inquiry form.
Proposal Catalog PDF
A catalog you can use for proposals to clients. We will send the latest version.
Sample & Physical Inspection Requests
Some aspects such as material feel, weight, and finish texture are difficult to convey through photos. We support sample loans or sales for architects, home builders, and interior coordinators.
| Method | Sample loan (return required) or regular purchase |
|---|---|
| Cost | For loans: You only pay the round-trip shipping fee For purchases: Regular price (wholesale price after transaction registration) |
| Loan Period | In principle, within 2 weeks (negotiable) |
| Target Audience | Professionals such as architects, home builders, interior coordinators, and store operators |
Frequently Asked Questions
We have compiled frequently asked questions about corporate transactions, wholesale, approval drawings, and samples.
・Home builders, home builders
・Design firms, architects
・Interior coordinators
・Hotels, lodging facilities
・Cafes, restaurants, eateries
・Hair salons, beauty salons
・Interior shops, lighting wholesalers
Architects, home builders, and corporate clients: Contact us here
Please feel free to contact us for quotes, approval drawing requests, sample requests, wholesale inquiries, and more. We will reply within 1–2 business days.