---
product_id: 15075441
title: "OTC 3633-10 Replacement Bulb, (Pack of 10)"
brand: "otc"
price: "$42.52"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/15075441-otc-3633-10-replacement-bulb-pack-of-10
store_origin: US
region: United States of America
---

# 10W bright output Pack of 10 bulbs 12V power precision OTC 3633-10 Replacement Bulb, (Pack of 10)

**Brand:** otc
**Price:** $42.52
**Availability:** ✅ In Stock

## Summary

> 💡 Stay lit, stay ahead – never miss a detail with OTC replacement bulbs!

## Quick Answers

- **What is this?** OTC 3633-10 Replacement Bulb, (Pack of 10) by otc
- **How much does it cost?** $42.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/15075441-otc-3633-10-replacement-bulb-pack-of-10)

## Best For

- otc enthusiasts

## Why This Product

- Trusted otc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimal 10W Wattage:** Delivers bright, clear light to enhance your lab work and precision tasks.
- • **Bulk Pack Efficiency:** 10 bulbs in one pack means fewer replacements and uninterrupted workflow.
- • **Reliable 12V Voltage:** Ensures consistent, professional-grade illumination for your microscope needs.
- • **Compact & Lightweight:** Slim 4x1x0.5 inch design weighing just 0.634 oz for easy handling and storage.
- • **Perfect Compatibility:** Specifically designed for OTC models 3633 and 3639 for seamless fit and performance.

## Overview

The OTC 3633-10 Replacement Bulb pack includes 10 high-quality 12V, 10W bulbs designed specifically for OTC microscope models 3633 and 3639. Compact and lightweight, these bulbs ensure bright, reliable illumination to keep your scientific and industrial work uninterrupted and precise.

## Description

OTC Replacement Bulb, (Pack of 10) 10 pack of replacement bulbs for numbers 3633 and 3639.

## Features

- Replacement Bulbs
- 10 pack of replacement bulbs for numbers 3633 and 3639

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | OTC |
| Brand | OTC |
| Model | 3633-10 |
| Item Weight | 0.634 ounces |
| Product Dimensions | 4 x 1 x 0.5 inches |
| Item model number | 3633-10 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 3633-10 |
| Voltage | 12 Volts |
| Wattage | 10 watts |

## Images

![OTC 3633-10 Replacement Bulb, (Pack of 10) - Image 1](https://m.media-amazon.com/images/I/61xchTsPPfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ They work
*by J***N on June 27, 2025*

They work fineWhy did you pick this product vs others?:Cuz I needed them

### ⭐⭐⭐⭐⭐ Very good
*by L***N on July 30, 2025*

Very good 👍

### ⭐⭐⭐⭐⭐ Just as the original
*by N***C on June 24, 2025*

After buying, I tested each bulb and they passed utilizing 150 mA of power. Now I have enough to last me 10 years.

## Frequently Bought Together

- OTC 3633-10 Replacement Bulb, (Pack of 10)
- OTC 3634 Heavy-Duty Straight Cord Circuit Tester, Red
- OTC 3633 Mini-Coil Cord Circuit Tester , Red

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**Shop now:** [https://www.desertcart.us/products/15075441-otc-3633-10-replacement-bulb-pack-of-10](https://www.desertcart.us/products/15075441-otc-3633-10-replacement-bulb-pack-of-10)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-31*