Get in Touch with GUANGQI
Karry
I write about commercial street lighting and the choices involved in replacing older fixtures. My contributions compare LED and high-pressure sodium lights and walk through the planning stages of a street light project. I focus on the specification and cost questions readers can check before a budget or bid becomes an installation decision.
Solar Flood Lights: Specs, Types, and Installation Explained [2026]
![Solar Flood Lights Specs, Types, and Installation Explained [2026]](https://gqlamp.com/wp-content/uploads/2026/04/Solar-Flood-Lights-Specs-Types-and-Installation-Explained-2026-768x512.png)
Solar Flood Lights: How They Work, What Specs Matter, and How to Choose the Right One Quick Specs Reference Power Range 15W–120W (solar panel input) Lumen Output 500–20,000 lm (residential to commercial) Battery Type Li-ion (500–1,000 cycles) or LiFePO4 (3,000–5,000+…
ATEX vs IECEx Certification: Which Standard for Which Market?
Quick Specs: ATEX vs IECEx Certification at a Glance ATEX: EU Directive 2014/34/EU – obligatory for equipment going to the European market IECEx: international electrotechnical commission system – voluntary, accepted in 34+ member states Both reference: IEC 60079 series (technically…
LED Warehouse Lighting: A Guide to Types, Selection, and ROI [2026]
LED Warehouse Lighting Guide: How to Choose, Install, and Save with High Bay LEDs Quick Specs: LED Warehouse Lighting Fixture Types UFO High Bay, Linear High Bay, Low Bay, Shop Light Lumen Output 10,000–60,000 lumens per fixture Wattage 100W–320W (replacing…
LED Driver: The Complete Guide to Types, Sizing, and Dimming [2026]
LED Driver E×plained: How to Choose, Size, and Dim LED Drivers for Any Lighting Project Quick Specs: LED Drivers Input Voltage 100–277V AC (commercial) / 120V AC (residential) Output Type Constant Current (350 mA–2,100 mA) or Constant Voltage (12V /…
NEC Hazardous Location Classification Explained: Class, Division & Zone
Quick Specs: NEC Hazardous Location Classification Governing standard: NEC article 500 (nfpa 70) – Class/division system Alternative: NEC Article 505 — Zone classification system (IEC-aligned) Three Classes: I (gas/vapor), II (combustible dust), III (fiber/flyings) Two Divisions: 1 (normal conditions), 2…
Explosion Proof LED Light: The Complete Selection and Safety Guide
Quick Specs: Explosion Proof LED Lighting Classification: NEC Class I/II/III, division 1 & 2 | IEC Zone 0, 1, 2 Wattage range: 20W–400W (replacing 100W–1,500W HID) Lumen output: 2,800–56,000 lm depending on fixture type Typical color temperature: 4000K–5000K (industrial standard)…
Outdoor Spot Light: Selection, Installation & Application Guide [2026]
How to Choose and Install Outdoor Spot Lights: A Practical Field Guide Choosing the correct outdoor spot light could be what distinguishes between disappearing at night when you leave a property or because the property has the decorative effect you…
