Designers Edge L68 1500-Watt 240-Volt Halogen Bulb. This bulb will provide enough lighting for commercial, industry, and garages. Size of lamp: 10-Inch T-3. Strong filaments provide for a durable light that will not burn out quickly. 240-Volt for International Use. TOLL FREE HOTLINE, 1-800-561-4321. If you have immediate questions about application, installation, troubleshooting, or a damaged component, please call CCI Consumer product hotline at 1-800-561-4321 or email questions to: consumer.service@colemancable.com