Premier Decorations TreeBrights - with a built in 8 hour timerChoose between 8 Functions; static, waves, sequential, chasing, twinkling, steady on, slow glow and slow fadeTurn the lights on and they'll turn on automatically at the same time every day, & turn off after 8 hours. Alternatively, you can deactivate the timer and they'll just stay on as normal.Smaller than normal spacing between each bulb - just 2.5cm - 4 times as many lights per meter as normal lights which have one bulb every 10cmGreen cable to enable easy blending into most trees, with a 5m lead wire to get from the plug to the first bulb.Energy efficient; ECO friendly non replaceable LEDsSuitable for indoor and outdoor use, *transformer must be located indoorsChoose your length:500 LEDs give 12.5m of lit length, recommended for use on trees up to 5ft750 LEDs give 18.7m of lit length, recommended for use on trees up to 6ft1000 LEDs give 25m of lit length, recommended for use on trees up to 7ft1500 LEDs give 37.5m of lit