2U 7W BLB UV Bulb Guide for Bug Zappers

The phrase "2u 7w blb" refers to a 2U-shaped (twin tube), 7-watt Black Light Blue (BLB) ultraviolet lamp. These bulbs are primarily used in electronic bug zappers and fluorescence-based detection (e.g., counterfeit currency or mineral observation) Alibaba Ebay.

Product Specifications & Insights

* Wavelength: Optimized at 365nm (UVA), which is the peak spectrum for attracting mosquitoes and flies Alibaba Entoquip.

* Design: The "2U" shape provides a compact form factor while maximizing UV output surface area. The BLB glass filters out visible light, leaving a deep purple glow.

* Sourcing: These are widely available as replacement bulbs for residential pest control units, with bulk pricing on B2B platforms typically ranging from $0.80 to $1.25 per unit for orders over 1,000 pieces Alibaba.

Market Trends for 2026

* Growth Momentum: The global mosquito killer lamp market is projected to reach approximately $619 million by 2026, driven by rising urbanization and health awareness Theinsightpartners.

* Technological Shift: There is a significant transition from traditional fluorescent tubes to UV LED technology. LEDs are becoming the preferred choice for 2026 due to higher energy efficiency, longer lifespans, and the ability to emit precise UVA wavelengths that penetrate further into the environment Rentokil Pestwest.

* Seasonal Demand: Search interest for bug zappers peaks dramatically in June and July, showing a high correlation with summer pest activity .

Detailed replacement bulb options and supplier details are available in the file below.