PowerLED AC70 – 0 ~ 70W 11.5VAC 6A IP20 TRIAC Dimmable Transformer, Compatible With LED Lamps

AC70 Electrical Specification

AC70 Input

Voltage 220 ~ 240V
Frequency 50 ~ 60 Hz 
Current 0.29 
Efficiency 95%

AC70 Output

Lamp Wattage 0 ~ 70 
Power Factor 0.99 
Capacitance 100 154
Voltage 11.5V 
Current 6A 

Protection

Over Load Protection 100~135% of rated output power
Over Temp. Protection Thermal shutdown

Environment Safety & EMC

Operating temperature -20°C to +50°C
Storage Temp. -20°C to +80°C
Case Temp. Max. 80°C 
Ambient Temp. 50°C
Dimming Control Leading and trailing edge dimmers
EMC Emission Compliance to EN55105, EN61547
EMC Immunity Compliance to EN61347-1, EN61347-2-2, EN61047

Others

MTBF 50K hrs full load (25°C)
Packaging 110g 

Most LED lamps operate on DC (Direct Current), not AC. While a standard AC-to-AC electronic transformer (like those historically used for 12V halogen bulbs) will temporarily light up an LED, it can cause severe flickering, significantly reduce the lamp’s lifespan, or damage its internal electronics.

Here is the essential breakdown of AC electronic transformers versus the proper power supplies for LED lamps:

1. AC-to-AC Electronic Transformers

These transformers (commonly reducing 240V AC mains to 12V AC) were designed for resistive loads like halogen lamps.

How they work: They simply step down the voltage, meaning the output is still alternating current (AC).Impact on LEDs: LEDs act as diodes and only allow current to flow in one direction. Using an AC transformer means the LED is only turning on during half of the electrical cycle, causing flickering and rapid wear.

Special Cases: Some specifically designed 12V AC LED lamps (like certain MR16 bulbs) contain built-in rectifiers and can safely handle AC inputs. However, this is the exception rather than the rule.

PowerLed is a UK-based supplier and manufacturer of commercial and domestic LED lighting solutions, specialising in premium LED drivers, strip lights, and bespoke lighting fixtures. Headquartered in Aldermaston, Berkshire, they supply electrical contractors and commercial projects.

Core Offerings & Specialties

LED Drivers: Renowned for their own brand of high-quality LED drivers (both constant current and constant voltage).Flexi Strips & Luminaires: Provide a vast array of high-CRI LED flexi strips, bespoke custom luminaires, and commercial downlights.

Bespoke Engineering: Offer custom solutions, including modifying tape lengths and fine-tuning drivers with advanced dimming protocols like DALI.

Project Support: Feature an in-house technical team that provides free lighting schemes and application guidance.

Industry Partnerships: Serve as an official partner for Mean Well power supplies.