For Southeast Asian manufacturers considering sell on Alibaba.com in the halogen bulb category, understanding product attribute configurations is fundamental to making informed decisions. This guide provides objective, educational content about voltage, wattage, and base type options—without recommending any single configuration as universally optimal.
Halogen bulbs remain relevant in specific industrial, automotive, and specialty applications despite the global shift toward LED lighting. The key is matching the right attribute configuration to your target market's needs. Let's break down the three core attributes that define halogen bulb specifications.
- Voltage: 12V (low-voltage, requires transformer) or 120V/230V (mains-voltage, direct connection)
- Wattage: 20W, 35W, 50W, 75W, 100W (common options; higher wattage for industrial heating)
- Base Types: GU10 (twist-lock mains), G4/G6.35 (bi-pin low-voltage), MR16 (12V spotlight), E26/E27 (standard screw)
Voltage Configuration (12V vs 120V/230V)
Voltage is the first critical decision point. Low-voltage 12V halogen bulbs require a transformer but offer better energy efficiency and longer lifespan. They're commonly used in residential recessed lighting, display cases, and automotive applications. Mains-voltage 120V (North America) or 230V (Europe/Asia) bulbs connect directly to standard electrical systems, making them simpler to install but generating more heat.
Wattage Options (20W to 100W+)
Wattage determines brightness and heat output. Lower wattage (20W-35W) suits accent lighting and display applications. Mid-range (50W-75W) works for general illumination and task lighting. Higher wattage (100W+) serves industrial heating, commercial floodlights, and specialized equipment like reptile terrariums or food warmers. Amazon product data shows 50W GU10 bulbs are the most common configuration for general B2B orders.
Base Type Standards
Base type ensures physical compatibility with fixtures. The most common halogen bulb bases include:
- GU10: Twist-lock base for 120V/230V spotlights (most popular for commercial lighting)
- G4/G6.35: Bi-pin base for 12V low-voltage applications (chandeliers, under-cabinet lighting)
- MR16: 12V bi-pin spotlight base (requires transformer, common in track lighting)
- E26/E27: Standard screw base (universal compatibility, declining in halogen segment)
- R7s: Double-ended base for high-wattage floodlights and industrial heating lamps [2][3]

