Philips LED T8 InstantFit Lamps are an ideal energy saving choice for existing linear fluorescent fixtures.Benefits:• 50% energy savings vs F32T8 electronic instant start systems.• No mercury allowing for non-hazardous waste disposal.• Emits virtually no UV rays or IR.• Some models are glass-free for safer working conditions.• 5 year limited warranty (see www.philips.com/warranties for terms and conditions).• 2 F32T8 lamps operating on an electronic Instant Start system with a 0.88 Ballast Factor consumes 58 system watts.• 2 12W Philips LED T8 InstantFit lamps operating on an electronic Instant Start system with a 0.88 Ballast Factor consumes 29 system watts. The system watts saved is 58 - 29= 29 which equates to 50% energy savings.Features:• Instant on, no flicker or buzz.• Fits into existing fluorescent fixtures.• Compatible with Instant Start, Programmed Start, Dimmable, and Emergency ballasts eliminating the need for rewiring. This allows the fixture to maintain its original UL compliance.• Must follow guidelines for installation from Philips Installation Guide included with lamp shipment.Application:• Full light output in spaces with temperatures down to -22°F (-30°C)• Perfect for applications with frequent “on/off” switching cycles• Buildings that desire to be mercury free