Call to Lighting Pro


The UpgradeToLED 4-Inch Square Pole Tenon Adapter (Model 4C2H90D) is a commercial-grade pole-top mounting solution designed to securely support two LED lighting fixtures in a 90° horizontal configuration. Engineered for 4-inch square, non-tapered steel or aluminum poles, this adapter features dual 2-3/8-inch O.D. horizontal tenons compatible with most slip-fitter mounted LED parking lot lights, shoebox lights, flood lights, street lights, and area lights.
Manufactured from heavy-duty steel tubing and supplied with four 5/16-inch stainless steel mounting bolts, the adapter delivers outstanding structural strength and long-term durability. Its corrosion-resistant dark bronze powder-coated finish withstands rain, snow, UV exposure, and harsh outdoor environments.
Ideal for new installations and retrofit projects, the UpgradeToLED 4C2H90D provides a dependable mounting solution that maximizes outdoor lighting coverage while reducing installation costs. Fixtures mounted to the adapter can be adjusted both vertically and horizontally for precise aiming.
| General Specifications | |
|---|---|
| Brand | UpgradeToLED |
| Product Type | Square Pole Tenon Adapter |
| Model | 4C2H90D |
| Pole Compatibility | 4-Inch Square Non-Tapered Steel & Aluminum Poles |
| Fixture Capacity | 2 LED Fixtures |
| Tenon Configuration | Dual Horizontal 90° |
| Tenon Diameter | 2-3/8-Inch O.D. |
| Fixture Compatibility | Slip-Fitter Mounted LED Fixtures |
| Construction | |
|---|---|
| Material | Heavy-Duty Steel Tubing |
| Mounting Hardware | Four 5/16-Inch Stainless Steel Hex Head Bolts Included |
| Fixture Adjustment | Vertical & Horizontal |
| Finish | Dark Bronze Powder-Coated |
| Weather Rating | Outdoor Rated |
| Corrosion Resistant | Yes |
| Package Dimensions | 59 × 12 × 4 Inches |
| Package Weight | 28 lbs |
At UpgradeToLED, we keep shipping simple and affordable.
Orders over $99 (before tax) ship free within the United States.
Orders under $99 ship at a flat rate of $9.95.
Orders are processed within 1 business day.
Standard delivery takes about 3–4 business days depending on your location.
If you need to cancel or update an order, please contact us right away:
Phone: 706-380-2070
Email: support@upgradetoled.com
Once an order has shipped, changes are no longer possible.
Please check your order as soon as it arrives.
If items are damaged or missing, contact us within 7 days of delivery so we can resolve it quickly.
UpgradeToLED
Phone: 706-380-2070
Email: support@upgradetoled.com
Address: 1280 Livingston Trail, Bogart, GA 30622, USA
Business hours: Monday–Friday, 5:00 am – 5:00 pm EST
At UpgradeToLED, we want you to be fully satisfied with your purchase. If you are not, we make the return and exchange process simple and straightforward.
You may request a return within 30 days of purchase by contacting us at 706-380-2070 or support@upgradetoled.com.
Once your request is approved, you will receive a Return Merchandise Authorization (RMA) number and a prepaid return label to download and print.
Send your return item(s) to:
UpgradeToLED Returns
1280 Livingston Trail
Bogart, GA 30622
United States
Once your return is received and inspected, we will process your refund or exchange in line with our policies. Refunds are usually issued to your original payment method within 5 business days.
All returned products must be new, unused, and in their original packaging.
A 15% restocking fee applies to returns that are missing original packaging or are not in new condition.
We accept exchanges within 30 days of purchase. Please request an RMA when arranging the exchange. A replacement item will be shipped once your return has been received and inspected.
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