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VARILIGHT dimmable electronic transformers

Features

  • Soft start gently brings lights to full brightness when you switch on and extend lamp life
  • Auto-resetting overload protection (above 200% of nominal load)
  • Auto-resetting over-temperature protection (above 100°C)
  • Short circuit protection
  • No minimum load

For LED lighting

  • For 12V a.c. LEDs, halve the output rating of the transformer (e.g. YT50LZ max. 25W; YT70LZ max. 35W).
  • Choose YT40DC12 for 12V d.c. LEDs (max 40W for LED strip, 30W for LED lamps)
  • Choose YT40DC24 for 24V d.c. LEDs (max 40W for LED strip, 30W for LED lamps)

Dimming

  • To choose a dimmer, add up the ratings of the transformers, not the wattages of the bulbs.
  • For halogen, V-Plus dimmers give the best compatibility.
  • For LED strip on YT40DC12 or YT40DC24, choose a V-Pro dimmer, with no more than 250W of AC/DC transformers per dimmer circuit.
Varilight Dimmable Transformer
Technical DataYT50LZYT70LZ / YT70ZYT105ZYT150ZYT210ZYT40DC12YT40DC24
Input voltage230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz		230V a.c. +/-10%
50Hz
Nominal input current0.22A0.32A0.46A0.65A0.93A0.2A0.2A
Output voltage11.5V a.c.11.5V a.c.11.5V a.c.11.5V a.c.11.5V a.c.11.5V d.c.23V d.c.
Output power range0-50W0-70W0-105W0-150W0-210W0-40W0-40W
Output power range for LED0-25W0-35W0-50W0-75W0-105W40W strip
30W lamps		40W strip
30W lamps
Nominal output current4.3A6.0A9.1A13A18.2A3.5A1.75A
Power factor0.990.990.990.990.99>0.9>0.9
Ambient temperature range0-40C0-40C0-40C0-40C0-40C0-40C0-40C
IP ProtectionIP20IP20IP20IP20IP20IP20IP20
Weight100g100g125g212g225g110g120g
Input terminals2 leads2 leads
(YT70Z: 2 terminals)		2 terminals4 terminals4 terminals2 leads2 leads
Output terminals2 leads2 leads
(YT70Z: 2 terminals)		4 terminals6 terminals6 terminals2 leads2 leads
Case type (dimensions below)AABCCAA
Case dimensions
Case typeLength x width x height
A95 x 41.5 x 27.5mm
B108 x 44 x 33mm
C167 x 52.5 x 38.5mm

YT transformer instructions (PDF) YT40DC12 instructions (PDF) YT40DC24 instructions (PDF)

Transformers and drivers

11 product types, 11 products

More help

Send us a message   01293 223333, Mon to Fri, 9am to 5pm   help@varilight.co.uk
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