Osram 4W E27 Ultra-Efficient LED Filament ST64 Squirrel Cage Light Bulb

The Osram Ultra-Efficient range of LED light bulbs offers huge energy savings, 60% less energy than other LED bulbs on the market today. With a lamp life of 50,000 hours, this is a fit-and-forget lighting solution expected to last 50 years based on average standard use. 

They are one of the only A-rated LED bulbs available in the UK lighting market today and with packaging made from 100% recycled material making them the most sustainable lighting solutions available. 

When it comes to replacing traditional incandescent and halogen light bulbs with these Osram LEDs the energy savings are even greater. With current unit costs of electricity, the payback period for domestic use could be as little as 3 months and for business even shorter. 

Product benefits

• Lamps with innovative LED "filament" technology
• Design, dimensions, and luminous flux comparable to a halogen lamp
• Very low energy consumption
• Instant 100 % light, no warm-up time
• Low flickering 

Areas of application

• Perfect for decorative installations
• Domestic applications
• General illumination
• Outdoor use in suitable outdoor luminaires only

Product Features

• LED lamps for line voltage
• Beam angle: up to 300°
• Very long lifetime of up to 50,000 h
• Very high number of switching cycles: 500,000
• Luminous efficacy: up to 210 lm/W